Remember that being alone many times equals being super productive in professional areas so it can be a great opportunity to learn a lot and move ahead making things that you can look back at with pride.
Hit the gym. It’ll help you clear your mind, and help you be sexier.
Get out of your house/room. Doesn’t help now I know, but you will get over it and the hurt heals. But yeah, you’re human. It’s ok to hurt.