Imagine positivity like a balance beam:
When negativity mounts and tips the scales to the minus side, don’t get upset. Begin work. Think of how to draw positivity out of the negativity or from an external source. Don’t cease this work until it is balanced. Then, continue to draw positivity until the scales tip to plus.
This is easiest done by addressing any failure or lacking by learning a lesson from it. It’s then easy to add more positive weight by counting your blessings and heaping them on scale, or by being kind despite upset, or looking at how beautiful life really is. Fundamentally, notice how nothing can bring you down. If something does, try critiquing yourself as: too lazy to fight back with a hug and a smile.