if I was going to sit down with "young psychics" to help them speed ahead in their development, I would focus on two things
(1) visualization techniques, such as past life regressions and guided meditations
but, I think more importantly, I would (2) have them work with the Tarot
an amazing tool, but also an amazing guide and companion to help unlock, refine, and gain some level of "control" over the gut instincts we're "taught to suppress"
I really do think the best way to develop your "psychic ability" is working with Tarot, even if you never shuffle the decks ever again later on
a magickal tool . . . something fun, mystical, something to "play with" and use in a social context
it helps you a lot when you're young and is always there . . . so, yeah