Understand your own game and your progress. Research your opponents before you face them. Figure out their weaknesses. Know who your top threats are. Find the best clubs to improve your skills. Predict your performance.
When pools are posted search your competitors on the site to see their strength.
Look at the registration list of a tournament. It will be sorted by strength, then you will know how you are expected to finish.
The strength graph shows you long and short term trends in your performance.
Compare yourself to your peers, clubmates, people of the same letter rating, and so on.
Use the club registrations page to see what tournaments people are registered at and maybe it makes sense for you to join.
If you fence someone you don't know, see if any of your friends or clubmates fenced them before and ask what to do.
See the best clubs in the nation and maybe you would want to attend.
See where you stand in the list of top fencers in your birth year and get noticed.