What i can say is that portuguese is a really difficult language. But any kind of language you must initiate by learning how to ask, the personal pronouns and the verb to be. After that, try to learn the relative and oblique pronouns and other verbs. There's no magic formula to learn languages. You just have to study, have interest, pay attention and live the language. If you knew spanish or italian that would be easier (your difficulty is the same i have faced in learning german). There are portuguese courses on the internet, from basics to advanced, and also good free books online. Sorry if i didn´t help much...