My Life Is Not Progressing

I Fear for my future. I'm a highschool drop out , I have no real talents nor am I naturally smart. I can't find a job and if I do it's impossible for me to keep then because I have huge social anxiety disorder. My family won't let me get checked out by a doctor because they think I'm fine and don't have the money for it. My friends are all successful now and I'm still where I've been since I dropped out. The stress makes my anxiety worse and I've failed my GED four times already. I always truly thought I was meant to do great things but i guess not. I can safely say that my future is dim.