My first time at the driving range

I've been taking lessons at my apartment community center for about two months, and I'm heading out for my first official round next week. lol
I went to the driving range for the first time today and practiced for an hour. My irons are going pretty well without much slice or hook, but the driver is my weakness. T_T
8 out of 10 shots are slices, and the distance is only 150 yards. T_T
I'm having a total mental breakdown. T_T