Getting over someone takes time and the amount of time really varies per person. What I've learned in my life is that one of the most important parts is getting your closure. Getting closure doesn't mean you have to go back and contact that ex or past lover from years ago. If you're over it and everything was resolved then and there then there's no reason to go back.
Now if you're not over it, then I do suggest getting your closure in some sort of way. Even if it's by pouring your heart out writing an article about that person from the past. People are so quick to judge others for writing about their past experiences and such but for some of us it's our way of coping with these tough situations.
Closure can comes in many forms but you will know when you're over that person. One of my favorite songs in the entire world says that the opposite of love is indifference. Hating someone shows that you're still not over the situation or the person. Once you get to the place where someone can mention his name and you don't find yourself cringing or feeling disgusted, you're getting over him. When you can see them in public without feeling sick to your stomach but rather feeling nothing, you're over him.
Personally, it's taken me a little while to get over a person who led me on big time. For me, my closure came in many forms and I had to go through all the stages before I could find myself being able to completely block him from my life. I truly believe I needed that all to happen so I could become stronger and know what to do and not do next time. So I want to thank a moment to thank this person for breaking my heart because you didn't really break me, but instead, you made me stronger. I learned that there will always be men like you but there will also be better men that will treat me better, I just need to read the signs more clearly next time.
It took me a while but I can honestly say I'm finally at the point of feeling indifference towards that person and I do truly hope he's doing okay, despite how badly I felt before.