Al Pacino, Ben stiller, Jack Black, Bob dylan (Without the heels), the lead singer of Muse, and plenty of other really well liked dudes are all under 5'7. Who would have thought Al pacino, as bad ass as he is was only 5'5-5'6? Frank Sinatra himself was only about 5'7. Robert Deniro and Sylvester Stallone are not much taller. Just goes to show, being physically tall is not as important as being confident, and doing something good. As others have said, unless you're going for girls considerably taller than you I don't think there's any problem.
Don't worry OP. Generally people that make jokes or look down on others for being short or whatever it may be that they have no control over, have nothing else in their lives going for them but a few inches.