How can you concentrate on the passion of Christ and say the prayer thoughtfully ? Or do you just say the Hail Mary as a repetitive grayer when you contemplate the passion of Christ? Or do you sorta contemplate the Passion while you concentrate on the hail Mary’s?
Here, this will help...
http://www.scripturalrosary.org/
I’ve been doing it for 45 years. I don’t need the guide anymore but we Catholics are great at multi-tasking.