uncertain how to act; weak-willed; lacking decisiveness
You have the talent to do anything you want with your life, if you were not so irresolute and self-doubting.
re (again)#solvere (to loosen, resolve, dissolve) (Latin)
Ir + resolute - resolute means firm and determined, irresolute means the opposite, doubtful (IR)not knowing. How to make resolutions.