I'm with a problem in Temple of Yak. I made the puzzles in the wrong way, and I don't know how open that passage. Please, help, I saw walkthrough in youtube, but that passage can't open.

So there are two switches that open that particular passage: the western switch very near the wall where you are, and the eastern one in the corridor above. The trick is to first turn the eastern symbol, then the western one. If you messed up, turn them back to their original position and start again. If this fails, you can teleport through the secret wall – the Guild in Winterkill sells that particular spell.