How to shut up?

My boyfriend thinks I'm annoying, overly sensitive, and sometimes rude he considers me an overthinker and says I cause a lot of problems and he told me he's argued more in our relationship than in his whole life so with all that being said how do I shut up and stop being hurt by things he does or how to not get insecure by things he does and stop myself from starting an argument is that even possible to just shut up and keep things to myself/ move past something right away before I say something bothers me to him cause i want to keep him in a good mood

How to shut up?
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