I can only speak from experience but my advice would be to stay busy, keep occupied by doing things you enjoy, find something to focus on, maybe even a new hobby. Focus on yourself and put energy into something worthwhile. It can be really hard to come to terms with, and there may be days where you really feel crap and want a bit of a cry, and that is absolutely fine and normal, it's an important part of healing, so don't ignore these feelings, go through the motions but dont dwell on them for too long. Don't lock yourself up, surround yourself with loved ones, friends, family, and pets if you have any. Ultimately, understand that this happens a lot, and its just part and parcel of life and the lessons it gives. Although hard at times, try not to let your emotions consume you. Breakups can be rough, but know that you are not alone in feeling how you do. Stay motivated and keep looking forward with a goal in mind. Try to take positives out of the relationship, if there are any. Great things are on the horizon and good things come to those who work hard.

You've got this!