semester goals

The goals I have set for myself was to have a 3.0 gpa or higher. i had a 3.2 but I had to have my wisdom teeth pulled and was out of school for a week. Now I have a 2.37. I would like to have it higher, I'm trying to get it up but it not working out all that well. I stay up late and study but I don't know what else to do. So yeah.