Welcome and I am sorry that you have to be here...You will find alot of support and help here.
First thing first as far as welfar goes... get your mom to write you a letter saying you are responisible for paying for you own food and room and board...but keep with within what you are getting from disiablitly and that should help you out a bit more with the walfare office and what benifits you can get. I would say use up at least 2/3 of your income. I know it seems a bit dishonest but you have to recieve health care and we should all be intittled to at least that.
After my accident I was able to get health care because I wasnt working but as soon as I went back part time I would have lost everything including my house if I didnt tell them that my mom and dad were paying me rent and that I wasnt back to work yet. But without health care through the state I would not even be getting any coverage at all and I would then be sitting here with no help and no hope and Im single with 4 kids to take care of.
I would also check into getting a new doc to manage your pain for you and sometimes it takes going through many docs to find one that will and can help you. I have been to at least 4 to date and am thinking about finding another one because I am not happy with the way things are going right now as well...Always remember that your doc works for you and you have the write to fire him and find another if your arent happy or getting the treatment you need or diserve.
I really understand how bad the nights are im in the same boat...I hate them and they used to be my fav part of the day and now I just dread the nights because the pain is so bad that I cry myself to sleep eveynight when I finally pass out and so far nothing they have given me helps at all during the night and that just wares you down and makes things so much harder to deal with. You need to get that sorted out asap and if finding a diff doc is the answer then that what you need to do...im in the same boat with that as well im looking myself.
I hope things get better for you and remember that this is one thing you can control is how and what your docs do for you even if its just because you can walk out and find a new doc that will treat you...
good luck and once again welcom