Not enough Silver Crystals

The Abuto banner came up, so I pulled, but man... they're just not showing up... The Yorozuya missions are also too tough, I can't even reach the extra stages, so I have no way to collect them... Help me 😭😭😭 There aren't many guides out there either, and while I do have SSRs, it's tough with just support characters... Maybe I'm just bad at this 😢