That is as simple as complicated itself. But given the soul truth of life in this world, there is no chance at all of you having no skills.
I was the same person as you a month ago. I probably would have posted the same question myself if I didnt think it would never help. But to remind you that dont belittle yourself. Maybe it is because you face a lot of discouragement from your peers or family or friends. That was my case. But how did I get out of this trap? To be honest, Im still not out of it completely. But Im working on respecting myself and my values more, as much as I or anyone deserves to have.
To find out what you should do, is too meditate on this question in your head when youre feeling not so blue. Maybe you had some aspiration when you were a kid. Or maybe there still is something you want to do, but you have decided not to because of the society.
All in all I'll just suggest to keep your spirits up through thick and thin. Dont ever belittle yourself or loathe yourself. I really hope you get through this phase sooner than I.