Often, you must make a decision to break off a relationship with a person of the opposite sex in order to maintain a primary relationship with someone else. Yes, age differences certainly do affect relationships, but the larger issue is whether or not your expectations for your life and of each other match. A divorce definitely affects subsequent relationships. Most people tend to be much more careful. If you are dating someone who has recently been divorced, it's a very good idea to wait at least two years.
Healing takes time.
It usually doesn't work. Although you did not ask me directly what I thought you should do, I think you should recognize that your relationship with this man was a good experience for you, but that it was a short-term experience. Now, it is time for you to identify what you want out of a relationship, and then meet as many people as possible. Join clubs, volunteer, have parties. Of course, you've heard all that before.