I hear ya!!!!!!
Dear Sister,
Oh my word, I'm so sorry things are so painful! Being 22 can be confusing for anybody. And ya, it's hard to charge out there and change when you've had long term health problems which might very well be affecting your emotions as well. And of course you're irritable! You want your very own nest! That's perfectly understandable. (I think my mom is adorable but I can not spend a night at her house either.)
Are there 12 step groups in your area? A good (good!) meeting can be a low pressure way to sit back and listen to people talk about how they work on their problems and relationships.
This might sound totally nuts, but there are 2 web sites that really help me. I'm a WAY sad person but I log on here and they do help.
One is
http://www.humankindness.org, it's actually for prisoners who are STUCK in their cells and hate it there and want some options and breathing space in their minds. Some it is kinda tough-love but I know the couple and they are fine people.
One is
http://www.FlyLady.net, she has daily steps for gently gently combing our lives into harmony and order. You might think "what a stupid idea!" reading her steps and suggestions, but honestly this woman has really helped me.
I'd say wait on the car if you can at all; do you live in an area where it is at all possible to get about without one? Cars are money and some hassle, especially if you are not comfortable with driving!
And to go out on a limb here, it can be good to stay away from alcohol, drugs, or sex if at all possible. When a young woman is confused they can really obscure the view.
Talk back some more. Who are you when you're not busy coping with Mom?
Blessings,
A