> I'm now suppose to plan my days in calendar
It's a journey. When growing up, we have parents first, then school, then employers taking care of us - either explicitly, by providing shelter, food and a stable daily schedule or implicitly, by setting parameters that channel our life into a sustainable direction. As we grow, we sometimes let these parameters take over control of our life and things gradually get out of hand, even more so today with the prevailing loneliness epidemic (google it).
Self-improvement is, of course, a prime target for marketing, but it is also a response to a particular need. Like many things, the pay-off is greater in the beginning: working out once a week yields a much greater improvement than going from 6 to 7 workouts a week. Much of the self-improvement hype focuses on the later, eg. it seems to me that the omega3 talk really targets nutrition-conscious people who count every calorie and thus face malnutrition issues.
> It's making me so anxious
It sounds like you're either at the beginning or at the end of the self-improvement journey.
> - drink X amount of water - moisturerize your skin - meditate - keep a journal - plan your day ahead, be productive
These all sound like good advice. Would your life be worse if you followed one of them?
> I want to wake up and do whatever the fuck I want
The liberal stance then would be simply not tuning into the self-improvement conversation. Yet here you are...