You are judging yourself too harshly on the number of relationships you have been in, and from the context of your question, you seem to be doubting your ability to be faithful to your current boyfriend. That is called "slut-shaming", and it is a terrible social function. It is the premise that a person's worth is tied to their sexual activity, and that if you are sexually inactive that you are somehow more valuable than a person who is more sexually-active. This is an insidious and harmful belief.
Enjoy your current relationship. That's all you have to do.
If you'd like to discuss this further, my inbox is always open at blahtherapy.com/members/blackholehead
