Back when I first got on suboxone in 2006, i was told it did not cause withdrawals at all.. I have no idea where some of these doctors get that idea, as buprenorphine has been around for quite some time.
Well it's not like they had to learn much about the drug to be certified to prescribe it.
Here's the criteria a doctor must meet in order to be allowed to prescribe it, and notice that it says they only have to meet 1 of the following criteria. I'm sure that they got the idea that it doesn't cause bad withdrawals from the good, honest folks at Reckitt Benckiser Pharmaceuticals.

For some reason most sub doctors don't seem to believe anything that their patients say that contadicts what the pharmaceutical reps for suboxone have told them, but also there was a lot less information about suboxone withdrawals back then since it was just starting to gain in popularity around the time you started on it.
I was prescribed suboxone around the same time as you, and even though it has been approved for the treatment of opiate dependency since 2002, it really didn't seem to be prescribed much until around 2008. In 2007 when I would go to any pharmacy to get my prescription filled, they never had the amount I was prescribed in stock, so they would have to order it for me. I had my "system" which was that I went to the doctor a week before my prescription ran out, and then I would drop off the prescription at the pharmacy, and let them know that it was too early for it to be filled, but since they needed to have the prescription in hand before ordering it for me (since it's so expensive they would only order it if I handed them the prescription first) I was just there to drop it off, and to have it filled a week from then. This way I wouldn't get stuck running out and having to withdraw for 3 days waiting for the order to come in, which is what happened the first couple of times I went. That's how I ended up getting the prescription a week before it could be filled since I kept seeing the doctor every 4 weeks even though it had taken longer to get filled those first few times. It was still completely legal what I was doing, I was still getting it filled every 30 days, but my doctors visit was a week before the prescription could be filled which gave me time to have it ordered.
By 2008 though, every pharmacy I went to had a good stock of suboxone, and could fill my prescription on the spot. It amazed me that in 2007 every pharmacist would look at me like I was insane for thinking that they would have anything more than 30 8mg pills in stock, let alone the 120 I was prescribed, but then a year later the same pharmacists were looking at me like "yea, why
wouldn't we have this in stock?" when I would ask them at the drop-off window if they had it.
Another indicator for the growing popularity of suboxone is the amount of doctors certified to prescribe it. I didn't look for a doctor when I was put on it since the outpatient program I was court mandated to attend had me see a doctor as part of the intake process, and he happened to be certified and he sold me on the idea of using suboxone to treat my cravings. I had checked the "Doctor Finder" feature on the suboxone website around that time just out of curiosity, and there were less than 20 doctors certified to prescribe suboxone in a 20 mile radius of me. I just checked it now and it has 100 doctors listed in that same 20 mile radius, and I'm sure there are more but the search results just max out at 10 pages with 10 doctors listed per page.
ok couple months ago I take them only weekly but 3 or 4 week ago I'm taking from 5 to 8 a day or something up but the past week one day I couldn't fined some and that was when I was at work and I was filling very sick so I continue taking
now I'm on winter break that I take to get rid of this habit but I don't now how
Since you are on winter break the time to stop is now, so I don't think that tapering is much of an option. Most of the withdrawals are over in 5 days after your last dose of buprenorphine, so I would stop 6 or 7 days before you have to go back to school so that you have the withdrawals over with.
If you don't taper and just stop now, then take some loperamide for a few days after your last dose of buprenorphine. If you can get your hands on clonodine it is helpful for restless legs and calming you down through the withdrawal, or you can get some benzodiazepines for that, but only take them for a couple of days so that you don't become dependent on them.
Here is a good guide for how to deal with opiate withdrawal, so I suggest reading through it since pretty much anything that people will tell you can be found in there anyway.
You other option is to taper down even further before stopping, but that can only work if you can get more. If you get down to 1mg then stay on that dose for maybe 5 days and then drop down to .5mg. Take that for 5 days and then drop down to .25mg. You might want to take it every other day, and then every 3 days, and then stop.
There are a lot of different methods of tapering, so that's just one variation of one of them. The general rule is to take just enough to take the withdrawals away, and then continue to try lower and lower doses just to make yourself comfortable.
I was on 24mg of subs a day and personally have never gone through any sort of w/d. Again, this is my from my personal experience. I went from 24mg down to 0 within a day or 2 and felt no difference. If anything my cravings came back stronger with the assumption that they were always there, dormant or not. I think it's person to person and mostly psychological.
How long were you on that dose for? I was on a similar dose, well prescribed 32mg/day but rarely ever took that dose so I usually took 16mg but sometimes more and sometimes less. I did that for 18 months before moving to a place that ended up having one suboxone doctor and he wasn't seeing new patients for 3 months, so in 3 weeks I went from 16-24mg a day down to nothing.
While I agree that it the withdrawals vary from person to person, I wouldn't say that it is mostly psychological. I was in a town where I new I couldn't get any opiates when I kicked suboxone, and the symptoms were very much physical. I lost 25 lbs very quickly from running to the bathroom all the time and not being able to eat, I had restless legs, was sweating a lot, and I was so weak and achy that friends had to walk me to get food, only for me to just stare at the food since I couldn't eat still. The psychological effects were more from the insomnia than anything else, and I didn't have cravings since there was nothing around to crave.