I need to get my medication out of my system quicker, help?!

I'm still pretty young but I've had insomnia for a long time now. Part of it was genetic and part of it was stress. After going through several different medications for 2 years, I was finally prescribed one that actually worked. But now it's becoming a problem. It made me gain a lot of weight, become totally miserable, lose my drive and passion for everything and have experienced drastic changes in my mood. For about 7 months now everything has become so noticeable to myself that I can no longer ignore it and continue sleeping with this drug as my aide. I've had to beg and argue with mom to let me get off of it and nothing has improved. Even though it's been around a week and I know things don't change that quickly, I need things to change a lot quicker. One side effect of my medication is depression and it's symptoms and I've experienced quite a few of them so far. My mom will just call bs on it and tell me it's from my lack of sleep and not the medication. I've been an overachiever with a bad sleep pattern all my life, I know a lack of sleep isn't killing my usually good grades. This school year has been the worst I've ever had and I really just need my mood to improve so I can try to salvage this school year.

Tl;dr: stress + genetics caused insomnia, insomnia drugs causing depression, life in general and school causing depression to get worse, what do I do to get drugs out of system + ways to not be depressed/get over depression without seeing a doctor?
If it helps, the medication I'm on is a generic of Halcion.


Any help at all would be greatly appreciated.