if you can't park good, you'll fail. it really all depends on the instructor. it needs to be good, not like you're going to hit a parked car. take it slow when parking. let your mind catch up and process what is being done. most inexperienced people drive in a space too fast. good luck
my daughter is in her early 20's and goes through the same thing. us women have this happen quite often. what's important is to not let it go and keep having the check up. most women who die from these types of things don't go for regular check ups or follow ups. relax, although it's not normal...
that usually happens to teens or guys that are not all that mature at the love making scene. most woman are disappointed in the teen sex unless they don't know any better. lol
you need to learn how to please her first and then take the 3 seconds for yourself. try love making and foreplay.