I'm anxious avoidant what should I do?

I'm anxious avoidant person and I have serious trust issues, and whenever I start questioning someone's loyalty, I tend to lean towards infidelity. In my previous relationships, I always found an excuse to do this because my partners weren't very trustworthy. But for the first time, I'm in a relationship with a really good guy, and so far, I haven't done anything wrong to him. However, even without a significant reason, I have doubts, and I'm genuinely a jealous person, but I've never shown it to him because I don't like this trait in myself either. Additionally, I'm afraid of these doubts growing and my past relationship issues repeating. What should I do?

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I'm anxious avoidant what should I do?
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