Feel insecure and that everyone's against my relationship

I am a young adult college girl who's seeing a guy. I feel insecure about my relationship due to I feel like everyone in my life I know is against me having a relationship. I haven't told my mom or my dad yet, mostly because my mom told me that I "deserve to get rejected" for asking out a boy. I also had an ex friend who would call me an attention seeker and lonely for wanting to be in a relationship. Sometimes I wonder if I'm the problem due to having a lot of issues with abusive men that I've had relationships with in the past, so maybe they were just trying to help me, but I can't help but feel mad at my mom and my ex friend. Especially since my ex-friend would vent about me to other people and threaten to harm himself because of me ghosting him due to him constantly sending me mean messages. So due to all of this I feel insecure about my relationship, and I feel like I constantly have to be validated.
Sorry for the rambling, I just had a lot in my head, and I hope for advice. Thanks for reading btw.