No, I don't mean to brag or anything. I still make typing errors/mistakes, but I'm happy nonetheless that I developed some typing skills from countless hours spent in front of my laptop typing up school reports, articles, and blog entries.
So if you want to increase your typing speed, then I just suggest that you spend more time in front of your computer and just practice typing. Better yet, chat with someone online! You can have fun and keep in touch with friends while enhancing your typing skills at the same time!