I Need a Faster Computer

I'm rushing today and tomorrow to get my next project milestone done before Saturday. I just got back from taking an hour break where I brought lunch to my mom and sister, and my computer doesn't want to open the files. Well, it says it's working on it, but who knows. I need a faster computer. The thing is that saying "I need a faster computer" is followed by a dozen other questions in an attempt to discover what exactly needs to be upgraded. And after eight months of intense computer training, I still don't know what I need. Any hints?