If you want to upload a photo for advice, I'm sure there's lots of members who'd be more than happy to talk you through things.
Flora has written some instructions on posting Images to the forums
Here
Don't worry about being a newbie, we've all been there. There's no one on this site that didn't start exactly where you are now.
If you want a good book to read on retouching techniques, I heartily recommend "Photoshop Restoration & Retouching" by Katrin Eismann.
Master the techniques in her book and you'll have a pretty good foundation to work from.