Dukali is correct. There are no " hidden powers ".
You might have some abilities that you haven't identified as yet, but even if you were to have them no one can "unlock" them for you. For instance, you might find that you are very good at reading the Tarot. But no amount of work by anyone other than you will make you good at readings. You'd have to study and practice doing reading after reading until you are truly good at it.
Magic does not have simple shortcuts. It requires work, study, and practice.