I need a quiet time

I need a quiet time. I have many things I want to think about it.
I believed busy can make me do more things. But now I feel busy make me too tired, want to give up, hard to do anything and cannot think about my life.

I cannot clearly think about my goal, what I want to become, what I want to get. It'll make me cannot achieve anything.

No, no, no... don't lament.

I will try by my best. I can do it.