How to mentally get over infidelity

[lamumhere]

So December 2023 I found out my partner of 9 years had been sleeping with someone else for the past year and a half.
I left him straight away, we have kids together so I still see him.
I am over him, I don’t have feeling towards him like that anymore. I have a new partner, but now I have major trust issues. These are unwarranted, as this guy has shown no sign of red flags at all.

does anyone have any recommendations of self help books / therapy that can help with my jealousy/ trust issues and help me move on from this trust nightmare.
thanks

Stay in the moment and enjoy each moment. Do not look to the future by using past experiences. If infidelity happens again you will deal with it at that moment. Like you dealt with infidelity by your ex at the moment you found out.
Self help books help if you're prepared to embrace the knowledge they express.

The Power of Now by Eckart Tolle is a good starting place.

You seem to have jumped straight into a new relationship without having taken time to heal. How is your lack of trust manifesting itself?

I would take a break from the relationship and get some therapy. Trust issues stem from low self esteem, so working on that would be a good start.