Maybe being tired all the time when you are depressed is a good thing. It keeps the number of suicide attempts down. You don't really have the energy for it. You fight enough battles and die too many times in your head anyway. It's exhausting. People want you to fix the physical things first. But it all starts at the head. If you win your battles and get in the right mindset, if you really, truly want to get better, then you can get there, step by step, and the physical things will get fixed along the way.

Less stress= Easier to eat
Less overthinking= More Sleep
Less looking back= More looking forward
Less fears= More Peace

That's how I see it anyway