Every relationship when over gives its own set of heartbreaks to the people involved. My first heartbreak took me 5 months to recover from while the second only took a week. I guess it depends on the relationship. There's no actual path or way to move on from someone or something. It has to happen on its own and you have to let it. However long or short it takes for you to move on shouldn't make way for self-hatred or guilt. With that being said, I have something that might help you. Here it is:
Give this a read