Hi CIndy and welcome. There are alot of scrapper's here. May are posting some great stuff lately they are doing in classes from Jessica Spraque. I am pretty new to it but will help where I can. Jane and some others are so much better at it.
Asking where to get started is a hard question to answer. What specifically do you want to know? I personally always start with a blank document 12x12 inches at 300 ppi and a transparent background. Fill that with a color I want to use, add a new layer and grunge overlays or use brushes or textures to decorate the background. Always put things on their own layers so you can play with them without messing with something else. Add your images where you want them and frames and embellishments add text or journaling. I also always save it as a .psd file so it can always be changed or added to later. If you are making kits, make a separate folder for the kits and keep everything for it in its own folder. Hope this helped some.