How do I be confident?

Can’t believe I’m writing this aged 38 but here goes.
A year ago I got out of a 15 year miserable relationship where I was put down, abused, cheated on to name a few. It really changed me as a person.. anyway for the last few months I’ve been seeing someone who means a lot to me, I’ve know him many years, he’s a good looking confident man. my issue is I have no confidence and I’m always expecting the worst and my own anxiety is being aimed at him as I always think he’s going to cheat or leave me.

He sent me a quote recently that said “confidence has no competition” hr said confidence is attractive and he wants me to be confident. I just don’t know how to be? Men / women help me? How do I act more confident around my man. I don’t want to come across arrogant or make him jealous. But how do I exude confidence.

thanks
How do I be confident?
Post Opinion