Native speaker? No.
German-speaking family? Nope.
Been to Germany? Yeah, x4, Austria x3 and Switzerland once.
So even though these were just week long/weekend trips to German speaking countries, I found it really helped. Even if you're just reinforcing vocab you already know, actually thinking on your feet in a real life situation is harder and more important than reciting known exam questions in a practice situation. And I think I can say this with some authority, because I reckon it helped me get 99% in continuers' half yearly (OHS)
Anyway, I know it sucks that there's no background speakers' course, because it seems we have to work a hundred times harder to do half as well. But I guess all we can do is work our arses off and then revel in the glory of creaming the native speakers in the exams (hopefully!).