Be active in the healing process. Recovering from such a traumatic loss is not a passive event. You have to be ready and willing to examine yourself and play an active role in moving on with your future.
Take care of yourself first. Picking yourself up and being aware of your diet, exercise and sleep schedule is a great place to start. You need to make sure that your body is getting what it needs so your mind and heart can heal more effectively.
Assess yourself. Think about all the reasons you started the relationship and what things you ended up compromising on that you should not have. Decide what qualities or activities you let go that need to be reestablished in your life and make a plan to do just that. Create a new list of what you want in your next relationship and work on strengthening those qualities in yourself.
Create a "new you." Evaluate how you have changed and give some of your new interests or perspectives a chance to thrive. Join a new club or organization or take some new classes in your community. Start creating a new individual identity that revolves around the new you.
Forget the "what ifs." After a relationship has ended, no amount of wondering what the outcome would have been if only you would have done or changed this or that will make the person or relationship come back. Focus now on the future and what you want and need to be happy and successful down the road.
Find an outlet for your emotions. Talk to your friends and family, sing, dance, draw, sculpt or participate in an activity to release your emotional stress. Keeping things bottled up inside slows down and can sometimes stop the healing process altogether.
Give it some time. Time alone does not heal a broken heart, but it can help make the pain less intense. Use the time after your break-up to work on yourself. Specifically, do not try to find another relationship to cure you from your broken heart. The reality is that you will only hurt yourself and possibly others in the end by jumping into a rebound relationship right away.