No one else has said it yet. The term for the problem is "counter-suggestion". You say your affirmation and then in the back of your mind in response you get negative responses. It can be helpful to have a pen and paper ready so that when you say an affirmation you can write down all the stuff that your mind comes up with. Maybe the affirmation will feel like a lie and the responses will feel true to you, but the negative responses that you get aren't actually true either. The point of writing it down is to give the back of your mind a chance to be heard so you can let it go. Maybe you will be writing the same stuff down every day for weeks. Don't take it personally. Eventually the stream will dry up. Everyone just wants to be heard and understood - you don't have to agree with any of it, but be respectful and keep writing and keep in mind that it is not really true either. Eventually you can say your affirmation and that will be that. Nothing bad will come back at you. Then you can move on to the next one. You don't need to re-read anything you write down, or show it to your T. Writing it down means you are done with it and you can destroy it.