The advice I probably gives most often, and it is sincerely meant - leave Excel, Notion, Word, Access, etc, etc at the door when you start with Coda.
This following thread is a prime example. It is full of complaints by people that want Coda to work like some other package, counterpointed with some really brilliant examples of implementations that leans into the respective strength of Coda and other apps, to build really amazing tools.
Now I am sure you do not want to built what Coda Solutions have built there - what I am trying to say is spent some time to unlearn Notion/ Excel etc, familiarise yourself with Coda, and then build something great… 
!
But, its just a ramble,
Rambling Pete