This is an advice given by @You.Know.Me about 1.5 years ago and I wanted to share it with everyone cause it helped me a lot.
“If you wanna control your mind then start doing brushing your teeth with your left hand daily means daily. You have to also use your left hand in work u do with ur right hand like opening door, cleaning something, using mobile and many more you can think urself . You will see result after a weak or 2 weak it will really help you to get control on your mind and also it will open your less used hemisphere of the brain so it will make you more creative.”
I confirm it’s true cause as a pianist, I can control what my left hand does and what my right hand does at the same time. That’s why practicing an instrument is also beneficial for your mind.
Hope it helps somebody.