For you have been born again, not of perishable seed, but of imperishable, through the living and enduring word of God. 24 For,
“All people are like grass,
and all their glory is like the flowers of the field;
the grass withers and the flowers fall,
25 but the word of the Lord endures forever.”
And this is the word that was preached to you. (I Peter 1:23-25 NIV)
Do not try to change yourself through human effort and religious ritual. Come to God through the blood of Jesus Christ, who is the WORD OF GOD (John 1:1) and He will transform you eternally starting with the heart.