No, you just turned 51. I will turn 51 in about six months. Not a full year older, and therefore only a few months older than I am.Remember, "a few" isn't a particular number. It simply means more than one or two, and less than, say, a dozen. (Although it depends upon what you're talking about. "A few stars" could be a hundred or so, since there are billions in the galaxy, for instance.)
Since it is less than a year, it is a few months.
Hard to know since I had no idea what your Birth month is. Okay now it makes more sense.
Yeah a few can mean lots of different things.