Age matters in the sense that most people become more mature and have different goals in different stages of thier lives. The primary goal of a 17 year old girl should be getting into a college and/or getting themselves into a position in which they can support themselves. Finding a guy is not first priority for someone who is in high school... and it should be priority #3 or lower for someone who is in college even.
>>1
And anyway, the first person that you should be happy with is yourself. If you are not happy as an individual, you sure as hell are not going to be happy with someone else. Not for any real length of time anyway.