I am 24 years old, unemployed, want to study in college, and cant?
When you said doors seemed to have closed, you may be looking at one or two opportunities. Research further on how this can be translated into a new job or a variation of the career that you have been looking for. If the opportunity is no longer available, then explore other interests that you may want to pursue. Sometimes, you need to look at other skills that may have more promising future compared to what you have believed will be good for you. Broaden your horizon. You can also approach people who have been in the field on interest and ask for their opinions on how you can proceed if you would like to seek opportunities on what you are passionate of. Hope this helps