Filter dates by months and years based on drop downs

I’m still new to this. I made a test page and was able to use a pair of drop-downs (Month and Year) that would filter a repeating group set to the number day. I was able to do this by making 3 fields in the test app data (Month, Day, Year) rather than by a singular date field. But now that I’m actually where I am pulling data from a CSV that has a date field, I need to be able to filter based on one date field.

The workflow I have is to display a list when the dropdown changes. How do you “Do a search for” and filter a month out of a date field? And then I would need to do the same for the year column.