I know this advice isnt popular but 5 or 4 hours of sleep per night are enough for an adult.
also start fasting!
https://www.sott.net/article/277272-Intermittent-fasting-supercharges-your-brain-and-more

https://www.sott.net/article/367351-The-head-to-toe-benefits-of-intermittent-fasting

https://www.sott.net/article/307730-Intermittent-fasting-shifts-body-into-fat-burning-mode-reduces-inflammation