Hi Kevin,
If you're not too familiar with computers, I'd suggest taking it to a computer shop and say "can you please recover my data please?"
If you are familiar...remove your hard drive, plug it into another computer...and try to back everything up.
It sounds like you'll need a new hard drive
Unfortunately, aside from fans, hard drives are the most common things to break, due to the fact they're the only piece of moving machinery in the computer these days...