at this point, I haven't written a word of either feedback or fic in weeks, and the rock to push uphill feels bigger than it did before

I feel this so strongly. I have a dozen tabs open meant for feedback and about the same number of WIP files and... it's starting to feel overwhelming enough that I just don't do any of them.

The weather sounds awful. We had similar temperatures here the first two weeks in August and it's literally exhausting, even with home AC. I hope you're safe and that things cool off soon!