Got to 8/20, I'm Level 40. I did every up-to-this-point Mementos Request. Started flower work and big bang burger to get my Guts to 4, Kindness to 3, and Charm to Charismatic. Sojiro's Confidant Rank is Rank 3, Akechi's is Rank 5, Takemi is Rank 8, I started Kawakami's Confidant and got her to Rank 3, started Ohya's Confidant and got her to Rank 1, Hifumi is Rank 5, Mishima is Rank 9, Yoshida is Rank 6, and Kasumi is maxed out. Also got the 20th stamp in Kaitul, the final one.
I saved at Leblanc at night-time. In my next session (likely on Monday) I will answer Mishima's text as it's likely that that's when I will be able to max out his link.