Lack of physical affection. Tinder etc?

I long for physical affection, hugs, kisses. Last time I had a hug from anyone was with my mother and I can barely remember when? I am the only child of my parent, I have a nuclear family, I even long for sisterly love and imagine how would it be. From my 3rd standard my parents put me in hostel, although I wasn't a naughty child, but just for my study. I crave for any kind of relationship with people. Now I am at IIT and still I don't have friends. I have lived a lone life from childhood. And I feel disturbed thinking about this. Moreover I am not a chatter box or a funny person, the kind of person people like. I imagine hugging someone, passing time with someone, kissing, but here I am all alone. And no I won't commit suicide, I am strong in that case, how can I ruin all the hard work that me and the sacrifice my parents had made to see his only child in IIT. Is it good to send random messages to people on facebook or use apps like tinder etc? Help will be deeply appreciated.