I have nothing left
You've given and given until the well went dry, and now you're running on a reserve that ran out a while ago. Having nothing left isn't a character flaw; it's what happens to anyone who carries too much for too long. You don't have to earn rest, and you don't have to be productive to be worth something. For the length of this page, there is nothing to give and no one to be — you can just stop.
Read one, sit with it, and draw as many more as you need.
Exhausted
I have nothing left
“Rest is not quitting. Even the ground lies still for a season before it grows anything again.”
More comforting words for this feeling
“You've been strong for so long. It's okay to set it down and just be soft for a while.”
“You're not lazy. You're depleted — and those are completely different things. Refill before you judge yourself.”
“Sleep. The to-do list will survive the night, and you'll meet it clearer in the morning.”