Know that whatever you have been through has passed. It’s not going to come back, and it never will. You may think it, but it’s not the same. It’s not what you’ve experienced 3 years ago, 4 years ago. All you have is memories, and memories are there for a reason, they remind you of your past. Forget the person. Keep the memories, because that’s all you have. Don’t try to relive the past. Don’t try to bring anything back. Don’t try to win her back. Stop trying. Wake up, she’s gone.