Very unsure

I've went to college for Welding but have been very unsure if that's the type of career I've been wanting to pursue. I like welding. But recently it's been hard to focus on myself and what I actually want to do. I was going to go for a 2 year diploma but haven't been feeling very good about everything, so I quit at the end of the semester. I've been wanting to do different things as well. I'm introverted and usually spend my time in my room. I cant afford to go to therapy so I've been on a whim of applying to different places and seeing what happens. But haven't been sure what jobs are really for me. How do you know what you want to do? Or where to go?

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