How.much is too many partners.

So im almost 21 and i hear my friends and cousins talk about how many partners theyve been with intament. And there numbers are not even close to mine , theres are like 3 and 4 (mine is 11but some of them were not all the ways if that makes since..) and it makes me kind of feel bad and out of place when they talk about it. So my question is , is that a bad number for my age? Should i even be worried? ..