Is this all I ever will be?

Im 20. I see people around me hanging out, falling in love, chatting and speaking for hours with their partners, having someone to speak their heart out to. I know that being in a relationship shouldn't be the biggest problem of my life, but I feel like I am missing out on something... I feel left behind. I don't know if the problem is me or them. I mean... Its okay if I am not in a relationship.... Maybe it would have been better if I had someone whom i can talk to for hours, share how our day went etc.... Any advice, guys?