Memorization without application is nearly useless. Learn your verse phrase by phrase and do start next week's verse even if you're not ready yet. As a family, make up motions you do together to say the whole verse. Use the statements on the front of the card like quiz questions. Precede your review with some form of exercise.
Studies show the mind is more alert.
No amount of memory aids can replace self-discipline. Without that, any memory plan will fail. WALK while you review your cards. Talking out loud while you walk will increase that. You see things you wouldn't otherwise.