I need help...?!

I need help...?

everytime at night... i feel like there is someone going to come.....unknown person. idk why

You certainly feel lonely and are stressed. Try listening to soft music and having a warm bath before going to bed. Watching a funny movie will make you relax and reading the Bible or Koran or any holy book will sure also calm your soul and make you feel in the company of God.
I know what you are talking about cause when my husband leaves on business trips I feel so lonely and any noise scares the hell out of me.
Doing what I wrote you above really helps me. Hope you'll find it useful, too.