You know how they say those who care don’t matter and those who matter don’t care? Well, it is 10000% true. You are only getting older each year, have you tried to improve yourself and care more about your well being? If yes, do the people you surround yourself with cheer you on or put you down? It took me getting out of a high school full of people I could never really connect with for me to realize it was neither of our faults. I was not less than for not fitting in, nor were they better/worse for being able (or unable) to fit in. 

There are millions of people on this planet. You can find people who are right for you, but first, you need to politely detach yourself from those who are not. Start by going to places that interest you and striking up a conversation with a stranger. Do not let one person’s rejection get you down. The conversation does not need to lead to something major. Use it as practice and keep going, things will fall into place!