I was abused as a kid ?

I was abused as a mid by my dad and siblings because of that I had never interacted with people both outside and inside of the house. I always kept myself alone. I did not develp confidence and self esteem talking with strangers and close relatives. Because of a lack of social skills I'm not comfortable talking or making new friends which is a huge hindrance in my academic as well as job careers. I feel like I'm just a burden on the society.