I agree with the people above. You clearly know your issues, what made them up, so actually it's not rocket science to fix everything.
Unfortunately, you DO have unresolved emotions and traumas from that first relationship, regardless of the thing that you "moved" on. Your self esteem didn't, and this is completely emotional.
Dealing with an emotional burden can be done in various ways, but most of them assisted by a therapist. You can start on your own though, looking for "emotional freedom technique" or some NLP procedures, or some guided visualisation/hypnosis. I guarantee you that this will double the impact of whatever conscious measures you will take - like communication with tom, like consciously increasing your self esteem. Coming here on this forum must be the start of your journey towards a "you" that has been locked away for so long.
Careful with tom, i am amazed he didn't leave you until now. If you could only look at you through his eyes....
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