what are the 3 points of view....i still don't get which is which!

First person.... the person who is writing the story is also witnessing it. The author will not be omniscient. They can only report what they see or hear or are told.

Third person limited...is not involved in the story, but is reporting.

Third person omniscient ..... knows all.
Check out this site for further information on writing point of view.