Should I cut back on Jiu-Jitsu or not?

The biggest stressor in my life right now is an impossible deadline to finish book two of my YA trilogy. The editor said I should submit the sequel when book one is in presale. That’s possibly in September. Zero chance I’ll be done by then–with draft 1 and 2, maaayyybe, but the final, at least 20th, draft? Not a chance.
I need more time. There’s the job, the kids, the house, laundry, grocery shopping, cooking, checking 2nd grade math homework, etc. Something has to give. You may have already noticed blogging has mostly “given,” as in, I’ve not been around much.
There’s also the book reading. I have three for which I need to write reviews. And my boss wants me to clean up transcripts of interviews she’s done and compile them into a book.
She and I were at a conference recently where, at the “VIP poolside dinner,” I met a woman with the most intriguing story that includes seven years of homelessness before a radical transformation. When dinner was over and everyone stood, I ran to her side of the table and said, “You are so amazing. Will you please be my friend?”