Discipline is important to all who wager. Even weekend warriors can improve their lot by being disciplined. Record keeping is also essential to consistent winning. You need to know what type running style is winning at all distances and surfaces at your track. What is the minimum 3rd fraction needed to win at each distance and surface. Sounds difficult but it's not really. If you can't keep it daily refer to the results charts for last several days and you can get enough info to make better wagering decisions. Some info is better then none.