Changing to different pay system

Our finances have been rolling along fairly decently for a long time. However, in the last few months, we've had a big change. In addition to a pay cut and totally new arrangements for all of our medical insurance, the primary income that used to be on the 1st of the month is now paid every other Friday. In addition, my checks are on the 15th and last day of the month (second 5-five star review year and only a 2% change as a result). Side gig #1 pays on the last day of the month (40% cut this school year due to shifted course load). New side gig #2 is every other Friday and just makes up the gap in Side Gig #1.

This means that alllll of my systems with automated transfers, automated bill pay, etc. have been just…shot. Some of those can be moved, and others (like cell phones) can't without canceling and restarting a contract.

With bills and transfers being on a set day of the month, it would help a lot if income was also on a set day of the month. However, that's no longer the case.

Does anyone have a Google Sheet recommendation for helping me plan out this stuff so that I can figure out how to spread expenses across these checks? We were on this first-of-the-month plan for about 15 years, so it's all skewed that direction by design.

I want to automate as much as I safely can.