What I want to learn about computers

In "Introduction to Computers" class, I would like to learn about how to use Microsoft Word, Microsoft Excel, and Microsoft PowerPoint more specifically and practically, because these things are required in many situations such as school assignments and job. Now, I mostly use computers to research something in internet, and write essays or summaries with Microsoft Word. I am very poor at using this kind of high tech machines like computers, so sometimes I get troubles while I use them and I do not know how to solve the problems. Therefore, I would like to know more about computers. If I could use it more skillfully, I would like to learn more sophisticated directions (just for me…lol) such as edit music or pictures which took by digital camera.