Roman,
If you are no longer a minor, look into a community service board, it could be a different name,, but you can get help there, either free or sliding scale. Here where I live the above is what its called and it serves two cities (small). I hope this helps some. Contact NAMI too, they are on the web, you might find a connections group near you, its a peer group, the members may have more suggestions that could get you help. My group has folks that know a LOT about getting help from different agencies.
best wishes to you,
I wish your mom could see that you are suffering.

Amy