2 years no sex...

This December coming up it's going to be two years no sex. Not on purpose. Just didn't happen. At first it was because well, like many, I was pissed off at guys and they're asshole ways. Then it was I figured "hey, I've waited this long why give it up to just a random," then it became me being busy with finishing school and just putting all of my focus into that. But now, and for the past few months, it's just getting unbearable, I feel like if I don't have sex soon I'm going to explode. And it's not to say this is the first time I've gone a long time. Before my two year dry spell there was a 5 year one. But I guess as I am getting older and closer to my 30s I feel like I've wasted the best sex years of my life. The worst part now is, I just don't know how to approach a guy. I don't know how to date. I've tried all of the apps, can't take anyone seriously, or I just quit. I can't keep having little kids tantrums due to lack of sex. Help!!