Pull yourself together. It's not the end of the world.
All of us have issues, everyone gets their heart broken, and things don't go as planned. But it's not something to sit around and cry about every single day. Sure, cry it out! Wallow! There's no shame in that. But if you keep living like that, you'll never recover from the pain you are enduring. Challenges will always arise throughout your life. It's what makes us become better people. We get educated not only through school and class and homework but mostly from life experiences. If you can't get yourself out of a slump over a guy or even moving on from the fact that you got a 79 and not an 80 on a test, then we have some serious issues here. Life is hard and everyone knows that. I will care for you, I'll lend an ear to talk to, and I'll maybe offer my shoulder to cry on. But after a certain amount of time, I am not sympathetic. I will not give you the attention you crave out of self pity. We are grown so please act like it.
It's time for you to get yourself back up and live. Crying every waking moment is not life! I feel like I would run into poles or get my license revoked from such blurry vision.
So come on, pull yourself together. That boy clearly isn't worth your time. That grade you got will not make or break your career. There is so much out there waiting for you to find it. Life will reward you once you discover all it has to offer So please, look up. Wipe your tears. Put on your RBF and get back to living.
Hang out with your friends, laugh at each other, eat excessive amounts of ice cream, and make sure not to look back on the bad.
Pull yourself together. It's not the end of the world. If anything, it's just the beginning.