24, stupid, have no idea what to do

Im useless when it comes to college. Im in my sophomore year and im doing terrible in my classes. Idk what it is but i study and just dont know the material when its test time. I have zero interest in anything at all(depression but im in therapy and psychiatry). i keep looking at trades but they all require you to study as well and i just cant do it, ik ill have the same problem. Not sure what to do from here