Dysbelief System

I've been thinking lately about the impact of having a belief about yourself that is not accurate (doesn't line up to what God says about you). I've learned about this before when I was taking some classes through Elijah house (if you want to know what this is, ask me in person, it requires a longer explanation) Any whoo...they call it unGodly beliefs but I like the word dysbelief system cause I'm using dys to mean impaired or bad, the dictionary confirms this...see below

1. Abnormal: dysplasia.
2. Impaired: dysesthesia.
3. Difficult: dysphonia.
4. Bad: dyspepsia.

I appreciate people who tell me that what I'm saying/thinking about myself isn't true and I have a dysbelief system. It seems that almost all of my negative thoughts can be traced back to this dysbelief. I give myself a headache though trying to reverse the thoughts. I know quoting Scripture and going back to the truth is the solution, it's just putting it into practice and in the middle of a crazy day where you are just keeping up, it seems overwhelming.