Just try anything. 25 isn't old at all btw. I'm 33 and can remember when I was your age. I was in a similar position to you, felt extremely lost in life and physically disabled from health issues (and not able to use my college degree). I did a lot of different things over the years, which eventually lead me to find potential cures for my stutter, which I am now working on. Also don't ignore health like I did. Mine got so bad I could barely walk without collapsing. Changing my diet by cutting out all of the junk saved my life.