How to deal with self esteem issues caused from a bad relationship?

Anonymous
So my first love and first relationship scarred me for years. He purposely convinced me that he loved me (and I have strong reason to believe he went out of his way to make me feel like he was in love with me) and after a year long serious relationship he ghosted me for another girl. It scarred me but what it did worst than anything was mess with my self esteem. I don’t even feel unattractive. I feel very attractive. Yesterday this handsome man asked me on a date. I did what I always did-rejected him without even thinking twice. I told him I wasn’t ready for a relationship but the truth is I was just scared. I always get extremely afraid that after getting to know me guys won’t think I’m good enough. I always reject people because I would rather not even try than try and fail. And I felt like I gave my best effort in the first relationship so it’s just honestly traumatizing how he discarded me like trash after purposely convincing me that he was in love with me. Despite the fact that I don’t beat myself up about my looks, weight, job, etc... and am quite satisfied with myself I still feel like deep down I have this fear that there is something inherently wrong with me and it started with that relationship
How to deal with self esteem issues caused from a bad relationship?
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