High Priest Marie:
Of course, the Wizard is no exception. Anyone wishing to become a Wizard must have achieved at least level 20 and passed the appropriate test.
You've done neither one! Reach level 20 and then speak with Parina who you can find studying the elements at the Temple in Gludin Village. Collect proof of all 4 elements and you'll get the Bead of Season. Bring it to me and I'll make you a Wizard!