How to buy Disneyland tickets video walkthrough - tips and step by step, what to avoid, what to do

Walkthrough on how to buy tickets, book reservations and navigate the Disneyland website, just clear and simple. Including what might happen if you make a mistake, and how it's supposed to look when you do it right.
Ever since Disney announced that you could start booking through their website on 4/15 it has become harder to find buttons. I couldn't find very clear and effective video on how the screens look, where do I click, etc. There is also things you want to avoid, such as leaving the site open all day, which may cause you to lose your place, and other things which you'll want to know about. I take this from beginning, waiting in the queue, and how to click. Hope it helps!