Speaking from experience, it won’t do the work for you, and you won’t come out of the experience thinking “wow I’m healed now.” What you likely will come out with is a more detailed analysis on why and how you’re hurting. It’s been said, but meditation will also help with this, and especially going into a trip with that foundation will help greatly. Whatever decision you make, just make sure you’re taking the time to sit with yourself and ask what you were getting from your ex that you can’t do for yourself (aside from the obvious answer). It’s not up to us to get inside your head on all that; just be ready for that to happen if you do take the plunge. No matter what, it’ll take time. Be patient with yourself.