Hello Angela
You are asking lots of questions, one after the other, and I've merged 2 together here.
This is a community, and you will get plenty of help, but it's also nice to contribute as well (not just quick "hellos").
You can do affiliate marketing on most websites, just be careful as too much affiliate and not enough genuine content will turn you in to a so called "thin content" site which Googles always on the look out for
