I need your opinion

I am in a long term relationship and he has been absolutely perfect. He has never given me a reason not to trust him. But I find that I still carry insecurities and trust issues from my past relationships. I was cheated on a lot and betrayed by people I trusted more than anything. I do everything in my power to make sure my current boyfriend doesn’t have to deal with the consequences from my ex’s (trust issues). But I’m tired of the constant inner battle. I just cannot trust him even though he deserves it. My question is, do you feel like this is the kind of thing that therapy would help? I’m open to getting help, but I wanna make sure it’ll actually be worth it. I just wanna let go of all of the baggage because it’s really hard and I don’t feel like I’m making progress on my own. My boyfriend is sooo understanding but I’ve made sure that this hasn’t effected my relationship negatively. But it still effects me internally