A Few Tips
Have fun! This is unequivocally the most important tip to remember. If you and/or your dog are not having fun, it's time to take a pa(ws).
Set small goals! There is so much to learn in this sport and so much to remember while running a course at MACH speed. Focus on honing one specific skill at each practice or trial.
Hit the road! Really. You might be comfortable trialing locally, but it's important to get exposure: new courses, new environments, and new handlers (who are bound to have some helpful feedback for you and your dog).