How do I get rid of my bad habits that is effecting my healthy relationship?

I’ve only been in very toxic and abusive relationships, and I’m finally in a healthy relationship. But all of my old habits from being in the toxic relationships is effect my healthy one. And it’s getting to the point it’s too much for my partner. He’s great and is always supportive, but I can tell my habits is killing him and draining him. I overthink too much and I have major anxiety. To the point where if he’s hanging out with friends and I don’t know where he is or who he is with I’ll freak out. I’m not trying to be controlling but I feel like I am without meaning to. Any advice as to how to stop my bad habits from effecting my healthy relationship?

How do I get rid of my bad habits that is effecting my healthy relationship?
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