想做過有用既人

聽你的意思你對自己的自信心開始動搖。
朋友，你要自己對自己要有自信，否則你自己做得幾好都會唔開心。
正所謂"人生不如意事十常八九"

方法好簡單:謹慎，盡力，努力，平常心
其實有時你比心機去做，即是最終成功或失敗與否。
別人是有眼睇的，或者在他們的心裹在稱讚你，而你不知道呢。
(有時因地方，人物，時間等關係，係唔可以當面稱讚人的。)

唔好放棄，繼續努力呀!

Well, first of all everybody has his/her own talent.Nobody is useless. If u want to make less mistake and people trust u more, u need to prove your abilities to them.

First, u need to listen carefully for the instruction. if there is something u dont understand and confuse u, u need to ask. this way can decrease the chance of mistaking.