Basic sewing skills or none at all. Some of the projects require only tying or gluing. Others need only basic familiarity with your sewing machine. Hand sewing can always be substituted.
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.
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.