What did I do wrong when I had bad experiences with men in real life and online dating?

I had both bad experience with some men in real life and in previous relationships and some men did cheat on me. My last previous relationship ended with one person who turned out to be toxic. I had mixed signals from some men throughout college. I did get men ask sexual questions about if I have sex with any men or if I'm virgin. I said I was uncomfortable to ask this qestions and still ask the same sexual question again. I had bad experience with some men throughout online dating some men were lying about being single. One men turned out to be a player and another men did want both sexual relationship and long term relationship.

What did I do wrong when I had bad experiences with men in real life and online dating?
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