Too general
Your question is really too general to provide much guidance. Books can be written on the subject. Do you race with spinnakers in your area? Do you have a tall rig or standard? What kind of sails? Outboard or inboard? Are you doing short afternoon races or longer overnights?You can get the most good info by relating an experience ("In our 1st club race of the season. I was on a beam reach, had nasty weather helm. I was on starboard tack in 12 knots, 120 up, the traveller all the way out, vang on hard, backstay off, when I was passed by another 27, he had..."), and asking for opinions as to what you were doing wrong or the other guy was doing right.