New feature class and saving data

I'm very new to Python and I have a question about building an add-in for ArcMap. I've looked all over for a tutorials, but there are none that answer my question.

I would like to build an add-in where the user is prompted to click on the map and creates a new point. This point is then saved to a database. Any new points created after the first are then appended to the existing database. Eventually, I would like to make this function work with polygons as well. Unfortunately, I have no idea where to begin with this.

Any help would be greatly appreciated. Thanks!