Just ride.....
The one thing that will help you develop into a better rider is to ride. Read alot, watch alot, think about what you are doing and how to make the sled work for you. Play with throwing your weight around, push yourself to grow your skills. I have always ridden a smaller sled, the underdog if you will, and have been able to follow most anybody that is sane. Always be careful, be prepared for the worst scenario and it won't get the best of you. Don't try to be the hero, just have fun within the abilities of the sled. Know that it is not going to keep up with sleds that are running two to three times the horsepower that you are, and ride it accordingly. You will go far, and be a better rider if you can finesse a smaller machine to do things the big ones are doing. Get lots of experience........God speed to you, have a good season, and enjoy the snow.