1. Talk to Your Daughter
Share your fears with her, talk about everything you think that is important. Don't treat her like a child, try to talk to her with patience even if you think she is immature. You think she is too young to have a boyfriend? Explain to her that there is time for everything, and that she is just beginning to discover herself and others. Suggest her to spend some quality time with her boyfriend but put some limits if you think that's necessary.
Try to accept that there are things that you can't control, especially things related to other people's feelings. Your daughter might be hurt, but you are there for here to help her with her first steps in love connected problems. Remember your first love and the way you felt. That will help you to understand your daughter.
3. Meet Her Boyfriend
Even if you are hair-raising at the thought to get to know her boyfriend, it's better to meet that boy. You will show to your daughter that you support her but in the same time you will have much more control over the whole situation. Maybe you will like him!
4. Be Careful
Yes, you have wonderful relation with your daughter, but little precaution won't do any harm.
5. Accept Your Age
Most of the parents have strong reactions about their daughter's first boyfriend because they think that's the first sign that they are getting older.
If you feel that way just think how complicated life was when you were young in love. There is one great thing about getting older – you don't worry about silly things.
The fact that your daughter is having her first boyfriend is not sign that you are too old for love. Love doesn't know limits or ages- yours or your daughter's.
And for the end – cheer up, you have a lot of things to do. It's her first boyfriend, but definitely not the last. Save your nerves.