In Wireless Interworking, set HESSID the same over all your APs for efficient client switching between APs.

Definitely read up on how to create vlans properly for the switch/router you use. While you may get it to work without, each switch chip can have slightly different requirements and if done wrong, CPU has to do all the work (slower speeds). Been there done that have the tee shirt.

Learn the terminal commands/scripting.
You can assemble them into an RCS file and execute them all as a oner.
Makes it easy to add comments etc.
Also, you can then maintain a “base config” file. You can upload it to a mikrotik, reset the devices config without applying the default config, and have it automatically run the script on reboot.
This makes it super easy to track config and config changes.
And if a device blows up, replace it and easily reload the config.

I do want to get into the ansible since of mikrotik. It looks like it’s come a long way since I last checked it out.

Read the documentation.