You're sixteen and you have several lovers? That doesn't sound good. Or was that "s" a typo? I sure hope you're using protection, or you could end up pregnant and throwing your whole life away, doomed to poverty with a little one to care for and a lack of education which means lousy pay for your time and efforts at work. When you find one guy you want to be exclusive with, ask him what he likes. It may be totally different than what another guy likes. If you can't converse with a guy, don't sleep with him.
At 16 I know your hormones are raging, but your top priority should be being a good kid to your family and friends, and getting a great education so that you'll always be able to rely on yourself. We are young for such a short time. Don't forget to be a kid. Most of your life will be spent with adult responsibilities and challenges. Don't be too eager to take them on when you don't have the means to handle them (like a job, a car, an education, experience, etc.). Right now your dating time should be a time you use to figure out what you really do and don't want in a mate.