If I am only interested in a closed relationship, such as a triad or a 4 person triad (quadriad?, quartette?) am i poly? Then again, I’m only 15. I’ve only dated one person and that was only for a month.
Sure! Closed multi-partner relationships are a completely valid type of polyamory. Don’t let anyone tell you your identity doesn’t count or that you need to feel a certain way to be poly.
Here is my FAQ page on the issue. Best of luck figuring out the identity that works best for you and helps you find the healthiest, most fulfilling relationships for you!