1) don't meet up with anyone you haven't seen or heard his or her voice. to be safe take a adult with you incase its not the person they say they are.
or you might end up with this guy
2)don't share personal details online like your house address, your name and were you go school ect.
because you don't know who your sending it to.
3) make sure your password is safe because if it isn't anyone can get into your account just by guessing
make shore you use numbers,letters,capitals and lower case and at least a symbol.
The creator of this guide has not included tools