I know it hurts, and because it was such a long relationship and this was such a fresh breakup, it will continue to hurt for a bit. The only thing you can do is move on and let him go. I know it feels impossible; I've been there. But it is the only way you'll ever recover. You're strong enough to do it.

Start small. Allow yourself to cry when you need to, but try to get back into your hobbies and spend time with your kids. Try looking for something new to do. When I was going through losing the girl I loved, I took up writing. It wasn't something I did when she was around, so having something completely new to focus on that wasn't associated with her helped me a lot. Whatever you've had an interest in doing but never actually did: do it. Especially during times that you used to be spending with him.

It takes time, but you'll slowly find yourself getting back on track. It may seem agonizingly slow at first, and that's because it is. But you can get through it. And when/if you feel ready to get back into the dating world again, you'll find someone who is worth your time.

Take care, dear