My left hand sucks

I read that if you brush your teeth with the opposite hand it's supposed to stimulate your brain and help with things like depression. Really? Well, I've tried this for the past 2 days and I just feel retarded, and like my teeth are not properly cleaned. Brushing my teeth with the opposite hand is one of the only things I could imagine trying besides maybe throwing a ball or using a fork and spoon. I would never pour a glass of wine with my left because it would spill and I'd get depressed. (the exact opposite of the study). I would never try flat ironing my hair with my left because I'd for sure burn my ear off or something. I'd 100% never ever try and use the opposite hand in the bathroom. (Don't even try putting an image to that). Shaving would take me ten thousand years.
Anyways, it's an interesting challenge. So if you are feeling like laughing at yourself, try brushing your teeth with your opposite hand.