You'll want to have a general understanding of sewing from a pattern but you do not need specific experience with knits. In fact, this class is a good place to start with knits because the pattern is simple and forgiving.
Whenever you're ready! The lessons are available online any time, and your access to the class never expires.
As long as you need! Your access never expires, so you can come back again and again.
Ask your questions on the platform and you'll receive instructor feedback. Your fellow students are also likely to jump in and offer advice from their experiences.