Momofone,
I have ADHD. Here is what I have done to help combat the ever wandering mind and fidgeting body during longer prayer times and devotions like the rosary, Holy Hour…every time I notice my mind wandering, I stop my prayer and say, “Jesus, cover me in your blood and bind the spirit of distraction.”
I may have to say this numerous times during a rosary but it does seem to calm me.
I also like to stick to short prayers several times a day.
“Sacred Heart of Jesus, I put my trust in you.”
“Jesus, Mary, I love you, save souls.”
or even more simple, Jesus I love you. Jesus help me.
I can drive to work and repeat this over and over. If (or I should say when) I lose my train of thought, I can pick it right up again and back on to the simple prayer.