"Moving here to me was not a mistake, but an experience"
This is what you need to focus on. There are times in life when all we can do is try our best to focus on the good aspects, and what we can learn from the experience. Quit putting yourself down.
You've got some perspective now, and you know what's out there in the world. Now you know how much more the little things about where you used to live mean to you, and there's absolutely nothing wrong with that. Some people with anxiety disorders rarely leave the house, so you should be proud of yourself for being so brave.
I hope the house sells smoothly, and everything goes well.
Good luck, PM me any time if you need someone to talk to.
Take Care,
Andy