its ok, its normal to all of us, when we play on a organized bball we tend to lose our 50% of our true potential than we have in our practice or pickup games so the solution is practice and work hard, for example my performance on practice is about 100% then when i played organized bball i tend to have game spill up (i lose my true performance because of the pressure) so my performance will only be 60-50% of my true potential, so my solution is to practice harder and having my performance on practice be like 150% so it will compensate when i'm playing in a actual organized bball.