Felix, is right. It's more like excuse. I can say that when the results of my assistance was negative. For example: I know, you need my help whith computer program. It's very urgent for you. I'm trying to help you, because I know programm the more better (I think that) than you. Ops! I broken you notebook. And then I can say: Я для тебя стараюсь... Хотел как лучше.
But, If you were Russian, you answer me: А получилось как всегда...