The purpose of confession is to "call those things that be not as though they were." (Rom. 4:17 KJV) This is what Abraham did when God changed his name from Abram to Abraham. He went from a lifetime of calling himself "exalted father" to "father of a multitude." Any man can be exalted to fatherhood by adoption, and sometimes we refer to early pioneers in various fields as "fathers" of their fields. But only one who has produced offspring from his own loins can become a father of a multitude.
Many have trouble 'calling those things that be not as though they were' because they are used to stating things as they currently are. Calling things into existence seems to be occultic, a denial of reality, or an obsession with fantasy, and therefore futile.
The operation of faith eventually calls for confession. Faith can grow only so much before it needs to be expressed through words and actions.
With Known Confessions, if you have problems with confessing the Word, you start by confessing basic truths that you already "know," but you have trouble remembering or applying. Known Confessions can also include positional truths that you have yet to walk in, but you accept as truth because they are in the Word. For example, here is the opening paragraph of my Known Confessions:
God loves me unconditionally. He cannot love me any more than what He already does, neither can He love me any less than what he already does. He is Love, and He does not change, so His love for me will never change. I cannot do anything to make Him love me any more than what He already does, neither can I do anything to make Him love me any less than what He already does. His love for me is based on what He is, not on what I do or don't do.
The eventual result of confession is to build hope in you heart, then turn hope into faith, and then the truth becomes manifest in your life.