You can freeze your account by going to ACCOUNT on the top nav bar, then SETTINGS in the dropdown there which is the very last one in the list! Scroll to the bottom and hit the red Freeze Account button, make sure you okay it when it asks if you are sure! It'll freeze everything as long as you leave it frozen, you can keep them frozen for literally as long as you wish! When you're ready you can always come back and unfreeze your account and it'll be just like it was the day it was frozen! :)