Have you ever wondered if you're not good enough for anyone and how did you deal with it?

I’ve had so many bad experiences in the past with being used , abused , and just blatantly disrespected by friends , boyfriends , etc and it’s hard to not blame myself sometimes even though I gave all those people my everything since day 1. How do I get past the feeling of self blame.
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Thank you everyone for your kind words , I’m in awe of all the nice comments and recommendations I really appreciate you for your honesty
Have you ever wondered if you're not good enough for anyone and how did you deal with it?
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