Not asking advice, just sharing a great comment I once read.

Everyone is trying to sell something. Never forget that. Everything you need to live a healthy life was most likely thought to you be the time you reached fifth grade. Get 8 hours of sleep, brush your teeth every morning and evening, don't do drugs, read , eat healthy, exercise three days a week. There I literally just told you everything you need to live a healthy and balanced life, for free.