damn man that must be really depressing and heart breaking.. I am 5'8 1/2 (174cm) and I really hate my stature, if I was 5'2 I would probably have committed suicide by now but hang in there. I just think there has to be an explanation as to why you turned out so short when your parents are clearly far from short and your brother has grown to be slightly taller than your dad. Do you recall having had health issues when you were a kid? Some medications when treating illnesses can stunt growth in children so that could've been the cause. For example, when I was a kid I suffered from bad asthma and had to be treated with corticosteroids and there are studies claiming them to stunt growth but then I look at my brother who's just 1-2cm taller than me and my father who's around 3 inches shorter than me and I conclude that probably this is just how I was meant to be as a grown man. Whether the things I took impacted my growth or not will never really know for sure. Malnourishment is probably not the reason why you haven't grown since I'm guessing you were born and raised in a first world country. I do not know your budget but I'd say you should lengthen both segments so you can really change your life and escape the stigma of being short in today's society. Perhaps you should do 8cm femurs with the most recent STRYDE nail, but it's expensive, and another 5-6cm on your tibias. With a further 14cm you would become around 173cm in shoes, pretty much average on a worldwide scale.