Doubt with Atmosfear I rules

hello, I have a question about this game..
can you move wherever you want, or you must move in the same way as a clock, around the board?
It is simply but I don´t know how we are supossed to move in Atmosfear I. Every time I play, I usually move always straight, without going back.
Thanks in advance!
P.D.: SORRY! I forgot to make one more question: If you land on NIGHTMARE and the one you pick is yours, can you move to your headstone and try again, or have you definetevely lost the game¿?
Thanks guys!
can you move wherever you want, or you must move in the same way as a clock, around the board?
It is simply but I don´t know how we are supossed to move in Atmosfear I. Every time I play, I usually move always straight, without going back.
Thanks in advance!

P.D.: SORRY! I forgot to make one more question: If you land on NIGHTMARE and the one you pick is yours, can you move to your headstone and try again, or have you definetevely lost the game¿?
Thanks guys!