I need practical ways to be contempt to sticking to one girl aka not lusting.

I’m getting older I’m trying to settle down find “the one” but how do yall deal with not wanting to chase other women.

The chase/lust is what gets me when I’m out on a date or when I had a girlfriend not saying I always act on it but I feel “guilty” at times for wanting another woman.

What book or tips can you give to combat this lust.