How to play basketball?

how do i play basketball when i..
have no confidence?
am not as strong and aggressive as b4?
am injury prone?

today, had a friendly match with tong whye.. i know i din play well..
it's been a tough and physical game..
having defend against the better players there, i had exposed all weaknesses within me..

after the match, laoheng told the whole team how each of us fare during the friendly..
i was told tat i am not as strong and aggressive as b4 and oso he's afraid i might injure my knee again..
i know my knee is not strong enough and tat is why i cant be aggressive..
now having hurt my back and ankle.. things look worse for me..
i can only defend stronger players but not the faster ones..

overall,almost everybody in the np team played really well tonight.. we won the tong whye jiazhu even though the coach told us that they are not in full force and they had some missing players..

IVP is juz 5days away..
i know wat i need to do..
i muz change my mindset.. overcoming the psychological barrier..
i muz get my confidence back
i muz oso get stronger in the fastest time and do something abt my stamina(although coach din mention,but i know my stamina is bad..)
no more injuries...

But am i really to play?
i will not be surprise if i was not selected for the IVP..