It’s important what you think about yourself. Unless you mirror yourself in the word of God, you may be seeing what God has not created you to be. Clearly scriptures made it known to us that  God’s word is like a mirror and as we look into the mirror of the word we become the word. 

2 Corinthians  3:18 But we all, with open face beholding as in a glass the glory of the Lord, are changed into the same image from glory to glory, even as by the Spirit of the LORD.

James puts it this way that if we continue to behold the perfect law of liberty, we shall be blessed in our deeds including your thoughts. There is blessedness in continuance beholding of the word. It aligns your thoughts to the word. 

James  1:25 But whoso looketh into the perfect law of liberty, and continueth therein, he being not a forgetful hearer, but a doer of the work, this man shall be blessed in his deed.

So then you’ll understand that as you think in your heart, so are you. 

Proverbs  23:7  FOR AS HE THINKETH IN HIS HEART , so is he: Eat and drink, saith he to thee; but his heart is not with thee.

We must understand that as we agree with God’s word and then live by it. We are living in the thought of God. So we then become responsible for our thoughts but think in line of what the word says you are.