A 2 step authenticator is a great way to keep your account secure. The only way someone can hack into your account is if they have your phone.
1: Log onto the server and type ::2fa
2. You will then receive the following text box
3. Click 'Set up two factor authentication' and then type in your phone number with the country code in brackets with a '+' symbol in front of your country code
4. You will then receive a 4 digit pin via text message and then enter the pin code into the ::2fa
Here is a way that you can find your area code with iPhone
Here is another way to find your country code