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.
Dorene does use a serger to demonstrate a pencil edge technique, but you certainly don't have to own or have access to a serger to take this class! You'll be able to use any domestic sewing machine of your choosing for a majority of the techniques demonstrated in this class, in addition to learning machine-free techniques for measuring, cutting and designing veils and fascinators.