okay - let's get the diet basics out of the way first.
you're not in high school anymore, and neither is your body. there's lots of crazy shit I did in high school (like eat one piece of bread per day and walk ten miles each way to and from school. that's just plain stupid) that I can't do now. Hell, I can't stand up without grunting like an old bear. we age, and it blows. but don't say "well in high school I ate less cals than this and was wrestling and was just fine..." try and do that now, and you're gonna get nowhere really fast.
don't use clen.
don't use the caffeine/ephedra (for now, at least.)
as the person a few above me said "there's no magic pill."
It truly is calories in vs calories out. "abs are cooked in the kitchen, not the gym." Granted you have a specific issue because you are taking prescribed drugs that have a likelihood to interrupt this math equation. We will get to that...
So you said you are 225lbs and you are 5'11". I am taking a wild stab at guessing you're about 25 years old. You said you live a fairly sedentary lifestyle and don't currently work out. That is okay (for now) and understandable considering the Rx drugs.
-To maintain the weight of 225lbs, you would consume 2,641 kcal/day.
-To lose 1 lb/week, you should consume 2,141 kcal/day.
-To lose 2 lb/week, you should consume 1,641 kcal/day.
That is purely the simple mathematics of the calories in/calories out, for your specific height and weight and activity level.
So, at this point, when you are not working out, I wouldn't suggest that you dip much under 1,500 calories per day, roughly.
It's likely that your metabolism is pretty out of whack, for lack of better term. Look at your metabolism as you would look at these Rx drugs in your body. When you start taking one of these drugs, you don't feel the effects right away. It takes a few weeks generally for your body to evenly distribute them to work correctly and get to the necessary levels for optimal performance. Your metabolism is the same way, although it usually takes a little longer than a few weeks to correct it.
When your metabolism is slow and 'confused,' it is not burning things efficiently. Kind of like a big bonfire - when the fire is huge and rolling, you throw a few twigs and branches in every so often and it keeps flaming and producing lots of heat and doesn't take a huge amount of maintenance. But when the wind is blowing and the fire wasn't started with a good base and you are constantly worrying about the fire and poking around at it and nothing's really happening...it takes a while, and a bit of work from that point, and some 'troubleshooting' to get the fire started, and careful maintenance. I'm about to use a really bad analogy here, so bear with me: but the Rx drugs that you are on right now, in comparison to a bonfire, is kind of like starting with damp logs. (I was going to say wet wood but I thought better of it.) You can eventually start a fire with damp wood, but it's going to be more difficult than if you had dry logs. It's absolutely possible, but it's just a challenge that you have to work harder at to overcome. So, it's important for you to recognize that an efficient metabolism is not going to happen in 2 days, or 2 weeks, hell - maybe not 2 months - but the work you put into it, you will certainly get out of it. When you get your metabolism in a good state, your body will become like an incinerator - anything you put in it will be burned quickly and efficiently, you'll have much more 'natural' energy, you'll sleep better, think clearer, and you won't be so consumed with an exact cal count or whether or not you should or shouldn't have that piece of pie.
Speaking of which, I also believe that it's really important to (sometimes) satisfy your cravings. If you don't, you'll never feel completely 'satisfied'. Not only is it just not fun, but it's distracting and can deter you from your 'diet' really quickly because you're only focusing on things you can't have, as opposed to all the things you can. Messing up is okay - just get back on the horse and keep riding it out.
Earlier when I said that your doc shouldn't be putting Geodon and Seroquel together, on the surface, I would be correct. However, over the past hour or so, I did quite a bit of reading on the subject and although there is a definite risk, it would appear that, especially with the worry of weight gain, that the benefits will hopefully and likely outweigh the risks in this situation. I personally never took seroquel because I refused it when it was suggested by my doctor because of the high likelihood of weight gain, especially in comparison to other AP drugs. (For me, weight gain is pretty much "life or death" - I should say, was, when I was younger...but I refused so many meds, lol...oh boy...I digress again, sorry) but when I was put on Geodon, besides that whole being perpetually drunk thing, I didn't gain weight on it. After reading, it would appear that a lot of people in the same position as you or me seemed to also lose weight/not gain when switched from seroquel to geodon. So you have that possibility to look forward to, at least.
It's definitely important to follow the taper schedule your doc appears to be putting you on for the seroquel. Stopping it abruptly and switching to Geodon has, from what I read, shown to have some pretty nasty effects - which would definitely deter you from succeeding in any sort of diet you have planned for yourself.
As for physical activity, hopefully you will feel a bit more energized when the seroquel gets out of your system and the Geodon kicks in. Maybe (...you should) at this point, consider starting some type, any type of a physical activity regime. Even if it is as simple as walking around your block for 7 minutes. You have to start somewhere. The benefits of physical activity, especially for someone like yourself, are almost endless. It will improve your mental status (exercise releases endorphins which are great for mood and motivation), it will assist in your desire to lose weight, and it's just good for you to move around and get your blood flowing in your body. There's an older gal who lives around the corner from me, and she does her "daily block walk." Sometimes she even goes 2 blocks. On a hell of an ambitious day, she might even go 3. Now, to most, you may laugh or think it to be lame, worthless, pointless or silly - but ANYTHING is better than NOTHING. As I said, you have to start somewhere. When I started training for a 10k, I was pitiful - I could barely keep up a run for 20 seconds. So the first week, I walked 5 minutes and ran for 20 seconds, repeated 3 times. Second week, I walked 5 minutes, and ran for 30 seconds. It took me over a month to be able to run for over one minute without stopping. But, I worked at it, every day, and after months of training, (it took me over 3 months to be able to run a mile without stopping), I ran almost the entire 10k without stopping. And to think, I couldn't even run for 15 seconds...
My point is, start somewhere, no matter how small, and stick to it. Fuck what any of your "bros" have to say about it, you just do your thing, and that's all that matters.