Hi there, you've reached out here and that's a good start. I suggest spending less time on the computer and more time studying... Anything you're interested in. You'd be doing this for yourself and so there's no "failure". It sounds like your parents care about you which is great (many here including me were completely on their own at too young an age.. Thrown out of the nest like rubbish).

I hear your pain and frustration, don't give up.. Everyone has something they are good at. Maybe helping those less fortunate will be your calling. Just keep trying new things and you'll find something that interests you. Have you spoken to a doctor about your depression? When we're depressed nothing feels fulfilling.

I hope some of this has helped! Good luck