This document discusses changing negative attitudes to positive ones through focusing on thankfulness. It provides examples of attitudes to change, such as being critical to loving, rebellious to submissive, and proud to humble. Two important attitudes highlighted are changing from complaining to thankfulness and doubting to faith. Examples are given from the Bible of how Israel failed by not being thankful, welcoming blessings but not the giver, focusing on obstacles, and listening to bad advice. Tools are provided for preemptively changing thoughts, such as practicing thanksgiving, knowing God's promises, focusing on past deliverances and Christ, and choosing good company. The importance of choosing a thankful attitude is emphasized as it displaces complaining and brings joy.