Your desire to learn paves the way to success. When you're asked to assume new responsibilities, you make it your business to execute these duties well. If that means taking courses, reading instruction manuals or watching instruction videos, so be it. This willingness to rise to every challenge has earned you a great reputation. People have started asking for you by name. That's because they know you will go the extra mile to satisfy their demands. As a result, you are perfectly justified in asking for a raise.