How are you ?

My winter vacation finished , it was very short .
I met my old friends and ate lunch with them on winter vacation. I had a good time.

But now , I have to do many things. For example , I have to do many assignments and study hard because next week I have many tests ><;
I am very sleepy because lack of sleep , so I want to sleep well . But I have to study =(
Please help me ~~~~!