I started off in Family History because I knew nothing about my surname.
My grandfather died before I was born, and my father's siblings had all died, too.
I had (and have!) no interest in any alleged origin of the surname - I only want documented proof of links between generations.
So, I started methodically, pre-internet, working from micro-fiche, microfilms and books, until I got back to the early/mid 1800's.
Since then, I have linked my tree to someone doing a one name study, and have data back to the mid-1500's.
Is my name, Garrad, Germanic (No!), or French (Family story - No!) - it's pure English all the way!!
So, the moral of this story is - never second guess - do your research methodically and systematically.
Also, learn your history!
The interwoven histories of Germany, Prussia, Poland, Belarus, Armenia etc are very, very complicated!!