Try to look at the bigger picture. If you suffer a little now you'll avoid a worse withdrawal when you finally get off the suboxone.
I've found 2-4 mgs will hold me all day. but when I started I was taking 32mgs a day. IMHO once you get over the mental aspect of taking less, your body won't notice the difference (or at most it will be tolerable, try benadryl or melotonin for sleep). At least that's how it works for me. Remember it's not supposed to make you feel perfect, it's only a transition from using to clean.
I've been off and on bupe for nearly 5 years and it's not fun...at all. Being on for one semester doesn't seem like too long at all. From my experience I wouldn't recommend being on it for more than 6 months. And make sure you taper very slowly, IMO the withdrawals can be worse than expected. make sure you stay at less than one mg for at least 2 weeks. I've found suboxone doctors to be fairly useless when it comes to tapering, so look around BL for a good taper schedule.
As far as suboxone doctors being useless about tapering, I imagine they pale in comparison to the uselessness of methadone 'doctors'. I was on methadone for about seven months and after telling them I wanted to taper down and get off of it, everyone got very awkward. They told me that the only proper way to taper would be 0.5 to 1mg every week. Being at 90mg you can see that this would have kept me chained there forever. Also they never helped me with tapering. I was always the one to bring up lowing my dosage, as that was every single day. It soon, and afterward, became clear that they were running this establishment to make money, or at the very least to keep their jobs. ( I know from experience that methadone is hell to come off of, but also that drawing out your dosage that long is absolutely pointless. You will be 100 percent better to taper yourself quicker, avoiding the additional 90 weeks of addiction, psychological and physical).
When I had mentioned Suboxone, everyone became very strange. It was obvious that they regarded Suboxone as a threat to their livelihood. And these were generally good people, people that I trusted. They simply were putting the existence of their jobs over my health, which I have a hard time forgiving them for that.
I think the most awkward part was when I had detoxed and gone onto Suboxone. I went back to the clinic and settle my balance and say goodbye to the people who worked there. One lady especially was highly critical of me, saying that I had moved the taper down too fast (by requesting, at most, 5mg each week). It was very disheartening and enlightening to see them in the face of my rehab from methadone. They certainly had no concern for what was best for me. I honestly believe that their perfect scenario would have been for me to remain a member of their methadone clinic for years, regardless of how negatively this would affect me during my young adult development.
I guess my point is that you should really be careful about your 'maintenance' staff. Sadly there are a good many of them who are nothing but glorified drug dealers willing to keep you paying no matter what. Looking back it seems so clear. I'm sure they are still over there doing the same thing to many people.
Honestly if you can't tell by now I am not a fan of Methadone Maintenance.
Looking back it seems certain that none of the clinic workers cared anything about me personally. They cared about their job and their paycheck. I would bet they philosophically thought of me as a degenerate piece of living. An automation of degeneracy who would always be the way that I was, and that they might as well make a good paycheck while I was at it.
Anyway, I am one almost two years clean from MMT and I will talk loudly against it to anyone who will listen. If anyone has any more questions with regards to that, please message me, and stay away from MMT as far as you can. It will leave you blind, bloodless, chained and ruined, without emotion or strength or personality. It will talk you down the to the dead end of opiate usage, and you will be left to crawl your way back, with aching and bloody nails trying to stab into the ground.
Honestly, stay away from 'maintenance'. Maintenance is just an excuse. If you can't keep yourself away from using without maintenance then don't let me stop you from helping yourself. But you should know, from someone who has been down that road, the whole way down, that you are making life much harder for yourself. Maintenance might stabilize your opiate using, but it will lock in your body and soul deeply, deeper than heroin or pills every could. And to know that coming clean is the best thing that that methadone will make that ten hundred percent more difficult for you.
Everyone please stay away from methadone and PM if you need to talk. That's all.
Edit: There are certainly those who have been helped by MMT, and those to whom right now it could save their life. But there are also a huge number of people who feign this (to themselves most specifically), and get on MMT just to have a stable means of getting high. I know this from both people on this site and more importantly the people I met in the clinic while I was 'using' methadone. Most of the people there are still trying to get high, and I would bet that many of the people that I met there are still there today (two years later), trying to get high with less and less, and eventually no, success.
I'm literally in shock right now. I'd read a bunch of people on here say methadone was a bitch to come off and all that but wow, I'd never even given so much as a thought to the idea of methadone clinics surreptitiously planning to keep you on the shit forever so they could make a buck off you. 
I'm studying to be a social worker right and when I learned about MMT I was all for it. I'm an opiate addict myself and honestly would never consider it, it's just not for me my addiction got/is pretty nasty in my opinion but not THAT bad, but for the hardcore heroin addicts doing 10 bags a day or some shit that literally CAN'T go without an opiate along with extensive cognitive-behavioral therapy it seemed great. I'm seriously still in shock like five minutes I after I read your post. 