@supermanbritt had you thought of just querying from one sheet using the user’s login e.g suisng a unique ID like the email of the user and in that way whenever a user stores their data it would be queried to their specific sheet I would do it like this;
Send all data to one sheet (HomeSheet) then from there sort it out by building a query that picks email and puts that data on a specific sheet but every time there is a new email Id have an Automator like zapier create a new sheet with the email name so that now that data is constantly being queried there.
For the call back, I’d build a block calling a sheet with the email as the address.
Just trying to think out of the box here.