So I need some help. I have an 89 5spd coupe and its not starting. I went to the car wash and cleaned my car yesterday. Then I drove to a friends house and parked my car. A friend called because he blew a tire and wanted help so I went to my car and it wouldn't start. Its not turning over or anything. Electronics are on and working but it won't crank. We had to push it down a hill to get it to start so I could get home again.. I don't know whats wrong.

Can anyone help me?