The most important thing about typing is practicing consistently, getting a good feeling for the keyboard you are using. Sit properly, and sit the same way that you do when you type all the time. You should focus on certain words that trip you up, slow down when you are practicing, and slowly speed up as you get better at typing certain words, and certain phrases. I think it's most important however is to try to enjoy typing, when you enjoy something you do it more and more, and you gradually will improve at a faster rate. Have fun and good luck! I'm currently at an average of 120wpm and I hope to improve even further, I know you can do it too!