Hi @Jlol , sorry I don't work ATM and have not had a regular job for a while, but the same issues persist.
There's a lot going on in your post. The main problem with 'society' is we keep getting told we have to fight every natural impulse, like somehow we're not a biological creature? Crazy.
The first thing I started to do many years ago was to understand what my body was telling me. A lot of your 'problems' can be interrelated. (Please note: I am not a doctor so this is just personal experience). Health and medicine is notoriously 'linear' and doesn't take into account interrelatedness. Eg. 'Sugar is Bad' so we must cut it out. But 'sugar' (ie. Glucose) is fuel for the brain, and not enough glucose probably adds to tiredness.
The idea that exercise has to 'hurt' to be useful is nonsense for most people. Only if you are trying to build muscle or high performace training should it hurt. Walking is effective, enjoyable, causes much less stress, and you can normally walk for hours.
These things get called 'hacks' but if you can talk about it with your doctor you may find them very useful.
Like being 'hungry'. I'm not a vego, so a smallish plate of meat & veg fills me up the same as a huge plate of pasta - it's just hollow carbs. In fact the benefits of simple meat and veg I find great for me. I have few health complaints. Or a good snack is a handful of nuts. Protein fills you up.
Sleep is tough, if you have to get up for work the only way is by going to bed early, or make it up on weekends. Again many think they need to stay up to 10pm or whatever every night like it's a social requirement. Who says?
I see often men and woman approach health advice differently. Personally if I find something works for me I stick with it more and am not swayed by 'trends'.
@Dimity @EternalFlower @Little_Leopard @Former-Member