I don't know what You mean by 'hidden powers' but you don't use a spell. If you are referring to things like talents, spiritual understanding, spell casting, or 'enlightenment' then it's not a spell you need. Things of this nature requires soul searching, research, and practice, a spell won't grant them, it's a journey you should take.
Look into meditation to help you connect with your inner self, or deities, it can also help with many different things spiritually and health wise. I don't know your path but pick up some books by reputable authors to help you learn. Once you have footing, practice, live a 'magickal' life every day [I say magickal because I don't know your path, but whatever it is, live by its teachings the best way you can]
If you were referring to psychic abilities then there are several methods of finding your own. (Telepathy, empathy, clairvoyance, etc.) I don't think there's a spell to achieve this but simply several exercises to discover your own psychic abilities. Good luck!
I do need help I found out via reader that my fiancé has been cursed before he met me and also by another woman while we have been dating now his past is affecting our future DOUBLE I need a sure fire hex breaker the reader wants to charge me 818$ to fix it but because of this awful hex we are both struggling financially can anyone help with suggestions or advice?