If he's not respecting your wishes, then he's not right for you. It may seem bad now, but over time that may extend to other more important things (what about your feelings in other aspects of your relationship?). His needs can't always come before your own. And you certainly deserve to be with someone who cares enough about you to make sure you are comfortable during these intimate acts.
if he cared about you, he would respect the fact that you are uncomfortable with this act. if he can't respect your feelings, then he's not worth it in the long run.
Why do you need to be told how to do this?
He's not a match. The dating relationship is to determine if you are compatible.
You're so young. Give yourself a chance to find a man you're compatable with. This man, he sounds like he's not it.
Do whatever you want, actually. If you want to be giving blow jobs several times a week for the rest of your life, go for it!!