Im way too jealous, needy, and insecure in my relationship. what can I do to be a better girlfriend?

Anonymous
Im very laid back when im single but when im with someone everything i hate about myself is a dozen times worse. Right now im with a guy who is probably the first guy I've ever loved so you can just imagine how much worse my insecurities are at this point. I can't even handle my emotions when i feel upset/jealous. Usually even if im jealous i can still hide it/act unbothered about it but with him i cannot do it. I feel too much. I dont want to be this person/girlfriend. What can i do to be better?
Updates
6 mo
When im single, by laid back, i mean im very confident with myself, i feel beautiful, i dont take anything seriously when it comes to guys, no jealousy, no neediness, no need for validation. Im the opposite when i have a boyfriend. Anyone else who feels this different when you're single vs when you’re with someone? How did you deal?
Im way too jealous, needy, and insecure in my relationship. what can I do to be a better girlfriend?
6 Opinion