How to overcome self insecurities?

I’m gonna be honest, I won’t take words of consideration from strangers. The only opinion that matters is what I think of myself, but it feels better to talk about it. Simply saying someone is “pretty”attractive” etc. will not help. It only matters what that person thinks of themselves. I hav received many compliments in my life only to end up in a vicious cycle with my mind. TV actresses that are hot trigger me into not being good enough. Random, attractive strangers makes me feel low. I couldn’t enjoy my trip to Europe bc I felt so overwhelmed. Being in a relationship rlly highlights my self insecurities. I never rlly felt tremendous insecurities until i was in a relationship. A man opening up his true thoughts got me messed up. I get these breakdowns/shutdowns whenever I am triggered by these emotions that i’ve been dealing with for 5+ years. Whenever something good happens i resort to negative thoughts that i CANNOT control. It drives me crazy and i am in emotional pain.
How to overcome self insecurities?
How to overcome self insecurities?
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