Press ~ in the game to bring up the console command, or use the Ring of Gods, depending on
your computer.

Type in showclassmenu, and you can edit your class.

Using this menu will reset all of your skills to their original setting, so what you have
to do is instead of clicking "Done" at the end, leave the class menu open and save your
game. Reload your game and your skills won't reset, and you can continue your game without
having to change anything else.