I don't think it's "being fun or interesting " in a way that is stepping out of who you are, but maybe back to who you were before trouble or even when you were married. It's not changing who you are, because if things don't turn out the way you want then you'll find resentment looking back at you if your "changes" were falsely done in the first place.
What did you used to like to do before? What are your hobbies? I found that groups related to my hobbies are awesome and a great way to step out of that box. The important thing to remember is that you can't change who you fundamentally are, but you can make small changes within yourself. What works for one doesn't necessarily work for another.
Keep your head up and keep driving forward. There is a reason the windshield is much bigger than the rear view mirror.
There are moments in this life when you are so confident in the rightness of your actions, that not even for a second do you consider the option that you might be wrong.
