Renewing my mind & humbling myself

i need to renew my mind..change my thoughts. Was thinking abt a matter today n i realised that the root of it is pride. i need to humble myself and be a servant, a servant for God. Father, change me by Your grace n mercy. i want to humble myself before You n admit that i am wrong. God, cleanse me n purify me so i can stand before You in purity.