Building a habit tracker

Hi All,

I want to build in a “habit tracker” to track my readers progress in forming new habits.

Basically, I want a horizontal row of boxes for every user. I’d like there to be a box for every day of the month in every row.

When the reader completes their goal for the day, they check the box for that day.

In this way, we can all see each others progress.

I’d like any reader to be able to create a row in this tracker themselves, so the tracker would be constantly increasing in size with new readers getting involved.

My question: where do I start with this?

Thanks very much!
Iain