How do I stop EXCESSIVELY checking my email like every 5 minutes? (well not really...but close.....?

I have the same problem, especially with Facebook. What I have found to work is to keep yourself busy with something not computer-related. If you need to do work on the computer, unplug your internet, that's what I've had to do. Or, keep a tab of how many times you check your e-mail a day, you'll realize how much you actually check it, maybe it'll be a wake up call.