So, here's my situation:
My family comes from Poland/Russia, although we're several generations removed at this point. As a result, I speak a bare smattering of Russian, but not nearly enough to hold an effective conversation.
In grade school, they attempted to teach me Spanish for four years straight. I struggled with it, and never really got beyond the most basic phrases (mostly strings of a few words I could memorize, rather than actually understanding the meaning). By the time I hit High School, it was becoming quite apparent I was simply terrible at learning languages. While I managed to hold a respectable set of grades in other subjects - even those I struggled with - languages were just beyond me.
At this point, I'm somewhat resigned to the idea that I'm not good at languages, and probably will not learn another one to fluency. I am rather aware of the fact that this puts me at something of a disadvantage, but it's not something I feel can be remedied.