[grasshopperpurp]

Fake it 'til you make it applies. When you're in the habit of stressing/overthinking, it's temporarily built into the way you process things. To overcome it, you have to practice controlling your mind. Sometimes starting with, "What is the worst way I could do this?" is helpful, because there's nowhere to go but up, and sometimes you trick your brain into producing solutions that seemed too ridiculous to consider - my own experience, anyway.