This sounds almost like he had a bad relationship and is glad it's over "I've broken clean free off the leash now" (by the way, it sound like "leash" not "leach"). He realizes just how bad it was and doesn't want to listen to whoever it was anymore, so he won't be tempted to go back "Keep all your thoughts to yourself now I don't need to trip on those words anymore." Now he feels free to do what he wants, instead of being held back by that relationship.
This sounds almost like he had a bad relationship and is glad it's over "I've broken clean free off the leash now" (by the way, it sound like "leash" not "leach"). He realizes just how bad it was and doesn't want to listen to whoever it was anymore, so he won't be tempted to go back "Keep all your thoughts to yourself now I don't need to trip on those words anymore." Now he feels free to do what he wants, instead of being held back by that relationship.