Hi Flying Man.
To add to what other participants have suggested, I think you'd feel better if you learn to isolate why you have choosen certain pursuits. I mean to go further than understand you had a simple goal to study psychology or to teach, to heal or shoot. Identify emotions you associate with each pursuit. What feeling motivated you to do it? How did you feel as you did it and after?
Since you're in the process of soul-searching for a new sense of meaning or passion, your future choices will be more fulfilling if you better understand the past.
I know a man who took up riding a motorbike and then put it aside. He tried shooting and gave that up before picking it up intermittently. He has taken up other pursuits, entered competitions and then, got bored with those things as well. In his case, he has a deep desire to prove himself and he is also very insecure. He has made choices as an effort to get attention and admiration from people who aren't impressed by his stunts for stunts-sake. He is in the process of getting-to-know himself better. Only by doing so will he discover what really makes him tick and make more fulfilling choices. These need to be made by and for him and not with the goal to portray him as something he's not.
"All truths are easy to understand once they are discovered; the point is to discover them.”
-Galileo Galilei