I think the best thing to do is just as Sandy and others have said, click on 'Forums' on the left of your home page and scroll through all the forums that are listed. From there you can visit any of them and find answers to a lot of your questions.
I am sure it seems overwhelming right now, but it won't take you long to learn to depend on the sidebar on your left. And if you still have questions, don't be afraid to ask.