Do something every day. and just remember no one can ever understand what you're going through. You will get another chance at love. It might not happen any time soon, but if you're open to it, it will happen.
think about him, but also think about yourself. That is the hardest part, but it will help make it better.
You'll never forget, but you will be able to move on and be happy.
Do something small to bring a smile to you face or the face of another. Start small.
Pay someone's toll. Pay for a stranger's dinner who is sitting at the bar by themselves. Thank a cop. Let someone go ahead of you. You'd be surprised what it will do for you and the other person. Try it. It may be hard, but the person on the receiving end will remember it and might do the same to the next person.
That's how you get back into the world and open yourself up to meet new people and be happy. He would want it that way.