My trouble

I didn't sleep well these days.
I just worry about many things.
Assignments, projects, future, family etc.
Last semester is quite tough.
I am so confused.
It is hard for me to begin something because I am too worry about it.
I don't want to waste my time.
I hope to successfuly achieve things I have been given.
However, I am often disappointed when I feel insufficient to manage these..
I think I need to be persevere in my efforts.
This is because I really dont' want to repent of my idleness in the future.
I hope I overcome this weakness.