You’ve got 2 queries in the code and I don’t see the need for the second. Altering the first query in the way I mentioned will order the post by the two fields, there wouldn’t be any need to do additional queries on every date.
Also, this is incorrect
'type' => 'date'
ACF does not store date fields in date format, it stores them like YYYYMMDD so this query will find nothing that matches the date.
