My Computer Skills!

I don't really have much experience working with computers at the moment. Even though I have been using them since the second grade when they first came out, I still do not know how to work programs such as Excel and Photoshop. I started off using the computers with the black screen and green lettering that made you type out what you wanted the computer to actually do. Right now I have a Dell laptop. It sometimes frustrates me when the Internet decides not to work on it though. It will only work when its plugged into the wall.