In the past, I've tackled this feeling with vitamin C and coffee. I've done a couple months of therapy trying to erase it altogether. I've ignored it. I've tried to just power through it. I've thrown exercise and wine and a new pair of shoes at the problem.
One thing I have never ever done is embrace it. Try and listen to it.
I've been reading and listening to Jen Lee in the last couple of months. Yesterday, as the sun went down and I found myself wiped out by 8pm, I remembered the title of her podcast, You Can Be More Gentle With Yourself Than You Imagine. I repeated it to myself a few times as I tried to get to sleep last night, and woke up this morning saying those words in the dark.
So today I am choosing gentleness. I am choosing to take care of myself. Today I am honoring my change-of-season-blues. I am listening.