Fabulous keeps congratulating me and telling me I building a habit as I finish exercise routine. But it doesn’t feel like I’m even close to eliminating the small voices of doubt in my head. When will this all become second nature? How long will I have to fight off the voices?

Jordie Y.
To he honest these voices will never really go away, but they will be minimized, the more you participate in a habit the less these voices will affect you, and the less they will appear. You won't have to fight them anymore as the habits you will build will keep you from these voices. It takes 21 days (three weeks) for a habit to completely become second nature, fight for that long and you will never regret it.