Newbie Frustration

I am using Fiverr as a buyer but then decided to put myself up there. I cannot find straightforward instructions for getting started. Why can't I add "gig extras"? What is a level? Why am I having trouble uploading an image to visually show what I do? I see a giant photo and the line "We're here to help." Trust me, you don't make it easy. I'm here to get things done, and the last thing I want to do is read through pages and pages of forums. (I did give it a shot, and the answers to my questions are not so forthcoming.")

I'm really good at documenting "how-to guides," so if you'd like me to take the time to figure it out and write instructions for everyone else, I'm for hire. Otherwise I would really appreciate answers to the above questions.

Thanks,
Felicia