Seriously , many of the words and elements are the same ,
German and English are bother and sister as is Swedish.
A young man can learn a normal conversation in 4-5 months.
About a year , 3-4 hours a day all hands on deck should { Your tongue goes
on auto in German .}
give you fully correct German . Few use correct any thing .P.S .
Almost every really dirty words are the same.
From what I have seen and done, it is very hard to learn any language after 55 or so.