My dentist once told me that letting go is like pulling a tooth.
When it was pulled out, you're relieved. But how many times does your tongues run itself
over the spot where the tooth once was? Probably a hundred times a day.
just because it was not hurting you, doesn't mean you did not notice it.
It leaves a gap, and sometimes you see yourself missing it terribly. 
It's going to take a while, but it takes time.
Should you have kept the tooth? No, because it was causing you so much pain.
So therefore, move on & let go. 

nmq