Always gulity before the sin.Guilty是形容词.
guilty before sin语法上没什么问题,关键看你想表达什么.
Only face it positively that can we achieve our goal.这个句子有问题,建议改为:
Only by facing it positively can we achieve our goal.
From now on,treat anything with smile,whatever it is,nomatter it does.也有点问题,建议改为:
From now on,treat everything with a smile,whatever it is,no matter what it does.