Please help me out guys

My dad used to cheat on my mom when since they married everyone in my family knew about this I got to know about this when I was 14 yrs old when I confronted he confessed but still cheating on my mom that time my mom just gave birth to my brother
So after that I stopped talking to dad there was time when I couldn't even see in my eyes
But I started talking to him again when I was 20 yrs old
And since that time means when I was 14 I used to hate man even my newborn brother
Still I don't like when any man touched me even my brother and now I can't trust anyone male or female dad or mom friends or any relative
Do I need therapy for this