It can be overwhelming, but you don't have to learn anything at once. Any pressing problems, you can just post questions to, and you'll get answers, and I'm sure that Brother Bob, who watches over the new member forum, will be along with helpful tips to get you started. Reading some of the pinned threads in the new members information forum may help you get started with all the terminology and whatnot, as well.
Welcome to ECF and I hope you enjoy your stay!
Anna