I very very like to study . but when I wanna to study I can and I dont no why? anybody can help me?

I very very like to study and succeed but when I wanna studieng I can not study and I do not no why! I always make schedule to do my works and homeworks but I do not do it well. I am so worry about this problem
i become happy if anybody help me!

There's an old expression in the US that says, "Everybody wants to go to heaven but nobody wants to die." The paradox is that you have to die first. In your case, that's saying, everybody wants to be successful but only those that make themselves study achieve success. You will always benefit if you make your highest priority your future. You just have to make time and develop the habit to do it.