Constantly work on cleaning up your language. Your conversation describes who you really are.
Read: James 3:7-10
7 People can tame all kinds of animals, birds, reptiles, and fish, 8 but no one can tame the tongue. It is restless and evil, full of deadly poison. 9 Sometimes it praises our Lord and Father, and sometimes it curses those who have been made in the image of God. 10 And so blessing and cursing come pouring out of the same mouth. Surely, my brothers and sisters, this is not right!