Hi niceguy, we're here for you!!! I know it's got to be really hard, so many memories and so many (even if tiny) reminders, right?? But you can/will be so much stronger without them, even if it doesn't feel that way right now. There can still be a much better tomorrow/s, and the more you are able to gradually let go of things and concentrate on yourself a bit more the easier it is going to get.
Now you don't need a relationship/a partner to make you whole, to validate you, to allow you to be someone/something special so maybe let that shine a little more for you, and focus on the freedom you now have to do/be who you want.
And when someone else comes into your life. well that's just going to be a bonus, and a bonus especially because now you're going to be better able to see you might really deserve a place in your life.
But sure, it's totally understandable that you're hurting right now, and you've got a right to be hurting, just know that you have the power in you to move on from this given a little time and that it isn't always going to be like this. You can/will make it/everything so much better in the end.
Here for you.........
Alison