Sorry Liz, I am having trouble with my eye atm so not posting much.
Personally I would not root an Android unless: a) I knew some Unix, and b) it was well out of guarantee.
However, this lets you go deeper than Samsung's rubbish software, and it is stable - it's been out years.
http://www.fjsoft.at/en/downloads.phpYou still have to set the phone to enable USB debugging mode, but it doesn't install anything on the phone and it does not require flashing the phone with the latest firmware - also a bit risky.
It works well on my Sony. Have a play.