I think people underestimate how tired you can be from just having too much on your mind! Not even physically tired! Just tired of remembering things, handling things, thinking ahead, fixing stuff, making decisions, being needed, tryna stay afloat etc. That's just a lot for real.
it really does man. You just have to compartmentalise every part of life otherwise you will be a shell of yourself if you build an altar for the grief & pain you experience in this life. You can acknowledge it, & let it sit somewhere in your brain, just like your everyday joys.