Most of your anxiety comes from things that exist only in your head.
Real problems: "I have a presentation tomorrow and haven't prepared."
Imaginary problems: "What if I mess up and everyone thinks I'm stupid and I get fired and..."
Deal with what's actually in front of you, not the horror movie your mind is creating.
2. Accept that you can't control outcomes
You can control your effort, not the results.
You can control your choices, not other people's responses.
You can control your preparation, not the circumstances you'll face.
Focus your energy where your influence actually exists.