Greenfields is correct with the recommended order. However, there is no reason why you cannot pray a different set of mysteries on a particular day if you are praying it on your own. Or if you have the time you can say as many sets of mysteries as you wish on any given day.
In his Aposotolic Exhortation Marialis Cultus of 1974 Pope St Paul VI gives some excellent teaching on the Rosary . He ends saying " The Rosary is an excellent prayer, but the faithful should feel serenely free in its regard."
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