Theft is sometimes quite difficult to process emotionally. There's a huge feeling of violation knowing that someone forced their way into your sanctuary, and took your personal belongings. As long as the thieves are not caught, and you don't have your things returned, it tends to remain unresolved emotionally as you can't help but wonder who did it, and where your gear is now.

You've done all you can. You just have to accept that the world is an unfair place at times. Its not easy. It takes time, but it also takes will power. Its almost like working out... you have to mentally force yourself not go down a negative spiral. Sometimes its helps when you're feeling really bad about it, to remind yourself that these thoughts are yours, bouncing around your head... if those feelings aren't serving you, then they're only making you miserable. As Don Henley said:

Better put it all behind you; cause life goes on
You keep carrin' that anger, it'll eat you up inside

Its a normal process to go back and forth, to dwell on it at times. Everyone says "just let it go" but in actuality, its really hard to do. There's times to vent and let it all out, and other times when its just a painful memory that you don't want to dwell on. At times like that, something I once heard that helped me with dealing with painful memories was to think of your memory as room with a door. You know what's in the room, what's behind the door. You can choose not to open it for now, just leave the door closed and pass on by.

Tough stuff to go through though. I'd be beside myself if someone stole my gear. What you're going through is not easy, and I think you've handled it really well. One day at a time.