Trident, you're what, 20? I'm not much older than you. I don't have a ton of experience dating either, but right now it's not something that worries me. Would I like a girlfriend? Yeah sure, it'd be nice, but I right now I'm young, single, have a job, and just want to have fun. I don't stress/worry because I know being happy with myself will lead me onto being happy with another person. Once you focus on other things (school for you, in my case my job), things will get better. It takes time, but you will grow.
We have a lot to look forward to in life, and things WILL fall into place, though it may not seem like it. You are being too hard on yourself with this trying to find a girlfriend routine. One heartbreak doesn't mean you should 'give up' on life; keep moving on. It's very hard, I know, and sure you'll feel shitty for some time; but everybody goes through things like this, it's part of maturing into an adult.