By having a less miserable life.
It's not all in your head, despite what the CBT nutters say. Nor is your brain chemistry corrupted like a faulty hard-drive. All of this shit was made-up by bourgies so people won't blame the societal structures they live under.
Unfortunately a lot of things that keep us miserable are out of our control, or take an extreme amount of work to try and change your circumstances to something better.
The kind of chaos that Trump is trying to generate will make a recession look like a picnic