#1 NEVER BUT NEVER use your real name to sign up on anything online that is free.
#2 learn to write down stuff instead of risking to forget it
write down your used name, id, password, the email you used (yeah i advice you to start a new email when making a new account, and most important of all your secret question.
#3 Get a firewall and or virus scanner and make sure both are on Never trust any program that advice you to put off one of both.
#4 use your freaking brain when connecting to the internet