Yeah, what they all said. Besides, this is nothing. Wait till one of them really breaks your heart
But seriously, there will be many, many others. Believe me, once you get your bearings in it and become more confident it'll grow exponentially. You'll be more comfortable going after women and let it just roll off your back when it doesn't work out. She wasn't the one, so why waste another minute pining for someone that wasn't right?
(I know this is all easier said than done, and really it's something you have to learn for yourself. No matter how many times people will tell it to you, it won't sink in. But you'll get there.)