Hello comrades and welcome to the first improvement megathread of February! 
A new month in front of us to conquer.
How was your January?
Do you have any plans for February?
Poster caption: "Youth - to the stadiums!"
Good luck with your goals! 
A community which focusses on improving yourself. This can be in many different ways - from improving physical health or appearance, to improving mental health, creating better habits, overcoming addictions, etc.
While material circumstances beyond our control do govern much of our daily lives, people do have agency and choices to make, whether that is as "simple" as disciplining yourself to not doomscroll, to as complex as recreating yourself to have many different hobbies and habits.
This is not a place where all we do is talk about improving "productivity" (in a workplace context) and similar terms and harmful lifestyles like "grindset". Self-improvement here is intended to make you a generally better and happier person, as well as a better communist, and any other roles you may have in your life.
Rules and guidelines:
I successfully did my first dry January. I'm currently sitting at 45 days of no alcohol.
One thing I've noticed recently is that I'm not really sleeping that well. Part of it is due to wanting to game late into the night but the other half is that night time procrastination because I don't want the day to be over yet. So I stay up far too late and then am just a zombie the next morning. I know I can fix it by just going to sleep at an appropriate time but I feel like the underlying reasons why I keep doing this need to be addressed.
Other than sleep issues, I do need to do more physical activities and eat better. I've been semi-consistent with calisthenics stuff but without any real program. My main desire at this point is just to stem the decay of my body and stop my back from hurting all the fucking time.
Congratulations on dry January!
The "revenge bedtime procrastination" is so common that it even has a wikipedia page lol. It's a systemic issue since most of our day gets eaten up by wage slavery and chores. Of course I want to stay up all night playing modded Skyrim smh
Regarding the back pain, these core exercises helped me
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy:
Hell yeah!