For your point about your parents, I felt exactly the same way. One way I overcame this was ironically to be closer to them. I dont mean physically, but emotionally. When was the last time you cried in front of your parents? It takes courage to let down your guard in front of the very people you say you feel defensive towards, but after I cried in front of my mother, I started to form a deeper bond and “hated” her less. Turns out, deep inside, she still loved me. That moment of vulnerability that i displayed also showed me her love.

For your point about the toxic relationship, since it was quite brief, I can only speculate that maybe that guy was not the right one for you. Dont give up finding the right person!