What a brilliantly honest article. I have days when my brain is so exhausted I can’t have a coherent thought let alone put pen to paper.
I too have adopted a schedule of 2/3 posts a week. This has had huge advantages for me. I have been able to keep my flow. Writing has cemented it as part of my daily routine with the minimal of effort.
My biggest tip for writing would be to write for yourself. Don’t be so obsessed with stats and followers that you alter your writing to please an invisible audience.