Yes, there are many similarities and at the same time there are some things that are unique for each person. It's really amazing!

About the mantra, have you considered making it a bit shorter? It may be more effective - "when I see my hands I'll realize I'm dreaming" or even "I see my hands I realize I'm dreaming". Mine is super short actually, it depends what sounds good to you and your subcon. You can repeat it on any occasion too, throughout the day as well as before bed and wbtb.