Idk how to get over my jealousy/trust issues/insecurity PLZ HELP

I’m having such a hard time with my jealousy and trust issues. Idk what to do anymore. I did just give birth about a week ago so maybe it’s my hormones still.

My boyfriend goes to school with ALL girls from 5-10 at night. He’s made friends. Im happy for him for that but I have such bad anxiety about what could possibly be going on. He’s going on a 3 night trip with all these girls for school soon, that scares me.

Now he just started his OLD job where is old fuck buddy works. (She’s married and cheated on her husband with him, so it’s clear she has no morals and wouldn’t respect our relationship)

He has broken my trust before. A - with this said coworker he fucked. He texted her behind my back, said it was about work but I’ll never truly know.

B - he’s gone to a club before something like hooters but it was a club and lied to me the whole time about where he was even tho I literally already knew because Snapchat location. It took him a whole day to admit to it.

C - adding / talking to pornstar girls on Snapchat. BIG no for me. Idc about porn but that’s a whole other level.

This all happened about a year or more ago and I feel like he’s changed and I can trust his word now. But these feelings will not stop eating at me. I feel like I’m pushing him away and we are going to split up if I can’t get a handle on my emotions. What also sucks is he was very controlling to me and wouldn’t let me go out if guys were gonna be around and I wasn’t aloud to go to bars with my friends but he always goes. He said it’s different cause he’s a guy and girls always get hit on at the bar. All of that has changed and he now does not care if I go out or anything at all so he’s changed. But him being like that made me like this.

Please help ladies.... don’t bash me, I’m seriously looking for help here. I just want us to all be a family and to work out. And most importantly I want to trust him and be happy