To improve your health, do the simplest thing that could possibly work. Don’t start an intricate supplement regimen or try to follow a complex set of dietary guidelines. The traveling snake oil salesman has moved online and is now a health influencer, but that doesn’t remove the quackery.
Decide on one parameter you want to track (weight, sleep, whatever) and make one simple change to your life. For weight loss, it could be preparing more meals from scratch. For sleep, it could be putting down your phone one hour before bedtime. Track your adherence to your chosen change and the tracked parameter for two weeks.
If you got results, good.
If you didn’t, either your adherence wasn’t strong because you couldn’t implement the change consistently, or the change didn’t affect the tracked parameter. Never mind. Choose another change and try again.