I do a whole bunch of things, but they usually involve concentrating on the mystery and not concentrating on the words of the prayers. This is a learned art, it’s partly dependent on the fact that I’ve been saying the basic Rosary prayers for so long I can’t remember ever not knowing how to say them, and from what I have learned it may also be gender-specific with respect to how the female brain works.
If you need to pause, meditate for a couple minutes, then pray, as many do who need to focus more on the words of the prayers, most people do it at the beginning of the decade, either before or after the Our Father.