Sex as a teen

Okay..
So sometimes I feel like ive had way too much sex and with way too many people. I'm 16 and ive had 18 partners. I've gotten checked out and I'm fine and stuff but still. Right now I have a boyfriend and we're monogamous at this point but we have sex like every week. Sometimes I feel bad cuz of all the times and I just really needed to get that stuff off my chest. Does any one else feel like they're bad or something cuz of the sex they have? Does anyone else even do as much as I do? I feel pretty alone right now and it would be nice to know if there was someone else like me.