Mind and body work together.
Thoughts are an accumulation of input.
Watch your thoughts constantly without judgement.
Social media is designed to addict you, use it as leverage to build your brand. Otherwise, get off.
When you become anxious or depressed, get up and move, or close your eyes and observe your thoughts.
You may not be able to go back in time, but you can learn from your mistakes.
Walking is a filter. If you can walk, walk. Leave your phone behind, and find a buddy to walk with.
Most people start exercising to look good. Eventually, you will learn exercise is a workout for your mind as well.