Is there a way I can find my old statuses on my timeline?

[I say...]

FB only shows some, but what happened to the other ones? And all the other things i hide?

[Momenul]

stories you hide will still show up in your activity log, which only you can see, and still be eligible to appear in your friends' news feeds. If you would like to remove a story you posted from Facebook altogether, you can do so by selecting Delete Post.... If you believe that something someone else has posted violates the Facebook Terms, you can report the story.

[abraXus]

check in your activity log