God can free us from our negative thinking by teaching us to trust him and love other people. Let God change the way you think.
Don’t live the way this world lives. Let your way of thinking be completely changed. Then you will be able to test what God wants for you.
"All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for instruction in righteousness:
That the man of God may be perfect, thoroughly furnished unto all good works. "
- 2 Timothy 3:16,17