you are not ready, FedAce. wait another few years.
I have been deeply involved in Tennis for over 20 years, i don't know how long more i should wait ??? also i do agree that you should know when and how many picks you go for. as an example, in a grand slam, if you are doing pretty well in your picks early,you should stop and move on to the next tournament. you should not get greedy and chase more picks deep into the tournament.