Yeah I’m rubbish, cannot meditate, cannot even hold the image of the mystery in my head, mind constantly wanders and I yawn a lot lol.
What I’ve started doing is taking something from the mystery and saying it after every Hail Mary, so e.g. The Agony in the Garden, I’d say “Jesus sweat blood for our sins”, Carrying of the Cross, “Jesus help me carry my cross like you did”. Try to keep my mind focused on the mysteries.