Sorting Dates by month, chronologically, on Pivot Table

Hi all,

I really hope you can help - I need to sort months in chronological order in a pivot table, and I can't make it happen.

I have one table where all the raw data goes to; each entry has a date (i.e. 6/20/2019, 2/10/2020, etc.), then the location, category, and values. That table gets updated every time there is a new ticket.
I use a Pivot Table to do a summary report of that data. The Pivot shows first the location, then a sum of the values, per category, per month. I have the Pivot Table designed just as I need it for the report, and it works great! With the exception of the months, all else is working just fine.

However, when I refresh the Pivot Table, the months' sort randomly; not alphabetically, nor chronologically. I need the months to show chronologically (Sep, Oct, Nov, Dec, Jan, etc.). I've googled this issue and none of the solutions/suggestions I find fix the problem.
I've attached a sample of the data, with a screenshot of the pivot table I am using; you can see the months are just all over the place.

I don't know what else to do. Help?