How do I control myself?

Don't let yourself get hurt by sleeping with him. There's all kinds of emotional and physical attachments there, and you shouldn't feel pressured at all. If you do, back off and take a breather.

Also, don't be shy about your virginity. It's great that you're waiting. Stick with it and don't give it up, because if this guy ends up hurting you, then your first time will be a regret, not a happy memory. Since you're under 18, you're going to go through a lot of changes in the next few years - emotional, physical, etc. Wait until you're a little more stable and know what you want in a guy (husband material) before you make a big commitment like that. You'll find that you have less regret and wasted time, and you'll have happier memories with that guy you waited for/married.

Control your emotions because you are a girl. I recommend you to wait at least a year after going out with him because giving your self to someone takes a lot and girls always get attach easy,especially if his the first. So relax and take it easy because pussy is very precious and probably the best gift for a men.