Dude... Look at yourself! You can't be thinking straight; you aren't even writing straight. She's an obsession. That is NOT a compliment to her but an insult to you.

She likes you to chase her. You chase. Now you don't want to chase. Guess what dude, she doesn't like you she likes attention. I don't mean to sound harsh, but you need to snap out of this.

I've been where you are. In fact, I don't know anybody that hasn't. It's infuriating. Your hormones are already raging because of your age and you are already literally insane from it. Make no mistake, every teen is insane. I was, you are, your parents were, it's biology.

Now, you are letting this insanity manifest itself to a single girl. This is actually part of the process. This is normal. You are normal. You are just acting batshit insane. Calm down. Breath. Take 20 seconds minimum to clear your head for a minute.

...

...

Ok, feel better? Now then, this is what you need to do. Step one, smile. Because fuck life, smiling feels good. No, keep it there. Read a joke if you have to, find an excuse to laugh. Now keep doing it. Sure, it's pretty fake, but it's cool you're insane, remember?

Now, take her off of all your social media. How the FUCK do you expect to get her out of your obsessed head if you constantly get updates of what she's doing? Block her, and REFUSE to let yourself see what she's been up to. I know, you're going to eventually look, but just realize how you feel before you look, and how you feel after. Every time you look, you feel like shit. Don't look.

Then, make your friends stop updating you about her. Give yourself time to get your head straight; you deserve that for you. Try no contact again, and again, and again until it works. Because it DOES work. It's the only thing that reliably does. Why didn't it work last time? It did... You didnt.

Get a hobby. Learn something new. Hell, LEARN TO COOK! Trust me, you want to be that guy that girls chase, learn to cook amazing food. Download Chef Ramsey's Ultimate Cookery Course (There are thousands of cooking courses, I recommend this one because it's easy and the dishes are AMAZING and quite simple to pull off). Go longboarding, rock climbing, bike riding. Every time you think you want to talk to her or check on her, drop and give me 20 and tell me if you still need to talk to her. You wont, because by the time you get 10 pushups in, your mind is on the pain or if you are lucky, the thought of "Why am I doing this again?".

There's a hole in your heart. Fill it with epic.