My aren't YOU a greedy little thing ! <grin>
I'd look into that first
Call a spade a spade and decide if that's a characteristic you wish to embrace and be proud of.
Beyond that, as Ygirl hinted at - polyamory is NOT for everyone. And that totally ok. But you have to be honest with yourself on that count too. It's work. LOTS of work, depending on the ideals and preconceptions you gathered growing up.
If you study polyamory and believe it's a better way to live in the world - then you also have to be prepared to do that work. But it's not for the shallow or a quick fix for getting what you want. The idea is to give as much as you receive. And maybe more.
Suggest you do some thinking.............