I think it is much harder when we are young and new to the job situation versus school, etc.; I know I had a really hard time when I graduated college even going out to apply for jobs because I felt like I couldn't do them. My first job, at Sears, I got put in a department I was not suited for and did poorly (had to call people and give them bad news, tell them why they had been refused for a credit card!) and was moved to an even harder one (customer service!) but struggled through and moved along in jobs.

It takes time and practice and you cannot get started unless you get started :-) I would take one of the jobs and try it; if it does not work out, both you and the company will know and you can try a different kind of job. That's the only way to find where you will fit. Imagining you will or will not is imagining things will change without you actively doing anything. You cannot do it on your imagination alone. If you are not careful you can run into yourself, having already applied to most of the places you feel okay applying to! I did that with volunteer opportunities.

I understand it is hard and you are afraid, make a plan for what to do with the money, saving for a car or an apartment, school, etc. and concentrate on that rather than the scary parts of starting a new job.

Do a time line where you accept a job and try it for 2 weeks or a month and then allow yourself to quit if it is too much for you. I had trouble starting or quitting jobs so for 5-6 years in the mid-90's that's all I did; accept and work part-time jobs for temporary periods of time, "practicing" getting comfortable starting and quitting jobs.

One thing I used successfully was having a friend working at a big company and helping me get a job there. You have any working friends/relatives who can get you a job in their company?