What can someone like me do ?

I'm anxious, indecisive, my hobbies and interests are ever changing, I struggle with talking to people and a lot of other stuff.

currently I have been talking with the college and career counselor about going into social work or psychology, however while I'm interested in psychology now I may not be in the future, I'm also scared it will be too much for me or that I'll fall into depression (as I have done multiple times before) and fall behind in my work, or that I'll do the many years of further education I'll need and find out I'm not even interested in the job.

I don't want to make the wrong decision but it's so so hard to settle down on one thing and be sure about that thing, because I'm not sure, and I don't want to get a job that'll be obsolete in 30 years, I'm scared of everything, I'm scared that I'll make the wrong choice and regret it, I don't want to go to college for general studies and have wasted valuable money and time for nothing, that's what my sister did and she's now working a job she hates, she pursued general studies and a major that now will not benefit her and that will now provide her with enough income to be stable on her own.

I really don't know what to do and it's really stressing me out.