Maybe, instead of aiming to show masculinity (which is a social construct in itself but thats a different topic) through height, you take whatever 5 inches LL can give you and then take on other "manly" signifiers, like skateboarding, street fashion, motorcycling or whatever you like, to fufill the remaining gap between what you feel your gender is (man) but what you are biologically stuck with (only 5'5 of height at best) You can't still be a manly guy just by being yourself, so if you truly are 'masculine in every way' like you say, then trust me, once you embrace that side of you as fk, no one will question you when you do a kickflip or some over their ass. We live in a genderfluid society lately, so you don't have to obey to the physical ""standards"" of what a man "should" be.