You don't need to learn all the cast ons right now. Find one that you're comfortable with--the long-tail is a good all-purpose one.
There are other sites that have pictures of knitting rather than video, so you might want to try those.
This one was the first that popped up on google and it has illustrations. Many knitting books and magazines have illustrations on how to do basics, as well.
Hang in there--it's not rocket science.