My partner is suffering from a mental crisis

Hello everyone, I wanted to share my story here bcz I'm feeling really depressed and detached right now. It has been 3 years since my girlfriend and I started dating. Things went very well for the first almost 2 years, until she has to move to a different place for college making this relationship a Long distance. Due to this distance I started feeling really insecure, not because I thought that she would cheat, but I bcz I was feeling scared that something bad would happen to her. Before our relationship she used to get bullied regularly, and I usually saved her from all those bullies after we started dating, that's why I was so scared. I told her to stop wearing certain dresses to not attract unwanted attention, I also told her to not go out at night with her college friends. She wanted to all those things but understood that I was trying to protect her so she didn't do anything of those. This led to her mentally fighting herself. At the start of this year, her mental was completely broken, and then finally she told me what she was feeling and that I had created a trauma in her life. I had become a monster she now fears. I was heartbroken hearing that. I never wanted this to happen and I loved her so dearly that I would have sacrificed anything for her happiness. I begged her to give me one last chance and she agreed. Now I let her do whatever she wants, bcz she deserves it. I try to do everything to make her happy, but she says that she feels numb. I hate this. I hate myself for what I did to her. Please someone tell me what can I do to bring her back to me. I don't want to loose her. She is the love of my life

Thank you for reading my story