Insecure/ Jealous

Hi everyone, I’m currently 25 and for the past year I’ve been working on myself. I want to be a better partner the last relationship destroyed me, I was abused by my best friend and cheated on. Now I’m happier, I have made a lot of progress but I lack when I’m drinking. I become such a jealous person & insecure, this is something I NEED to change for myself. I hate how this makes me feel. I don’t even have to drink a lot, with one beer I just get jealous. I just recently started dating this amazing guy, he’s so social and I find myself getting jealous when we’re out and he’s talking to females. Luckily I can contain it but inside I’m so mad, please ladies how can I change this? I don’t want to ruin this and I personally want to love myself to the fullest to be afraid or see any female as a threat thank you.

Any tips on how to work on myself?