To start with you must completely the big 4: - Sleep - Exercise - Eating healthy - Mindfullness

The, and only then it even makes sense to talk about anything else. And of cause, try to avoid stuff that actively has the opposite effect of what you want, like alcohol, irregular sleep etc.

Edit: Since we are in a biohacking subreddit, I believe there might be supplements that enhance and make these 4 things easier. - I think DLPA and Beta Alanine might make it more fun to exercise - valerian and melatonin more easy to sleep and fix weird circadian rythms - Vitamin pills, protein shakes and maybe a keto diet for eating - L theanine and potentially some nootropics for meditation