How do I change my privacy settings on facebook?

[T]

How can I change my facebook so that only my friends can see my wall,pictures,info,etc?

I used to have it private but now everyone can see it.

Facebook keeps changing and it cant figure out how to adjust my privacy settings anymore :\
they keep making it really confusing.
@Donnie yes,yes it is.
I have it on "friends" but everyone can still see my wall & info.

[Donnie]

facebook is wank isnt it.

[Nysh]

Go to the right upper corner of the screen, click account, there will be a drop down menu, there you have to click privacy settings, it will lead you to a new page, in there you can read a little of information that might help, also there you can change your settings, just click the one that says friends and it will save up right away. You can also check the facebook help center.

http://www.facebook.com/help/?tab=top

[booze]

Go to Privacy Settings > Under "Control Your Default Privacy", choose friends.
You should also edit settings on "How you connect" , then choose friends on "Who can post on your Wall?"