How to know when people drop off from the form?

I would like to analyze the steps in my card so that I know when people drop off is that possible?

Unfortunately, it is not possible to know when people close the form.

What you can do, is to Enable the Continue Forms Later option. This way, the users are able to Save their progress and you can see their progress from the submissions page.

Complete Guides:
Setting up the Continue Forms Later Feature in Card Forms
How to View Incomplete Submissions Sent Through the Continue Forms Later Feature?