Where do I start?
At the top of the Forum, on the navigation bar, you'll find a link to "Fedora Set-up Guides" (in yellow font), which will help get most things working.
You can also get some good tips in these sub-Forums: "Read This First Forum" (especially "What This Forum Is, and What It Is Not") and "Guides and Solutions"
And, of course, clicking on the FedoraProject link will give you tips and a wiki directly from the Fedora Project.
Now, as to specific topics, you'll need to use the Forum effectively. Please read the Posting Rules first, then read further on the FAQ for exactly how to handle posts on the Forum.