My genitals are small and I don't have any hair on my body

Different guys hit puberty and the different stages of puberty and male growth at different ages and its all based on your genetics and health. If your male relatives hit puberty late, you probably might too. It varies a lot, even in one family or from Dad to son, and from one brother to another brother too. Dr.s can't say when you'll start or hit your different desired goals in puberty. I know its tough to be 15 and see all the other guys getting hairy, muscled, tall, and hung like horses all around you and you feeling left out of the luck. But often the guys who grow up the fastest sometimes can also burn out physically the fastest, go bald earlier, get heavy earlier, and start to look old or middle aged before the same aged but later developing guys in life. Right now that doesn't sound important to you. But in the next 10 or 20 years you'll enjoy lasting more years in your best prime masculine condition and watching other early developers sometimes aging way faster. The early manhood guys have the advantage for a few years of time during school and early in life. The late developing guys usually have many more years of prime sex and manhood to enjoy later in life to make up for their late starts. Check out the guys who hit manhood first and then look at their Dads and older brothers. Many of their Dads and older brothers don't look as young as men their same ages. Everything has its pros and cons in life.

Exercise and muscles are the one thing that do seem to make a guys look older and better if you develpo later. Its also seems to help push out more testosterone than lack of exercise. Muscles and fitness are one way for any guy to compete and look good at any age and to stay your best physically while waiting for your penis and hair to grow. Good Luck.

By the way, read up on the usual sequence that most guys experience in puberty. Your balls are usually the first thing to start growing toward manhood. Measure your balls and keep track of how they grow to know when you'll likely get the later stages of puberty. There are even testicle size charts and diagrams online that show the usual testicle sizes of boys and men at the various Tanner stages of puberty to help guys learn what stage they are at in their puberty. Dr.s use these same testicle sizes and stages to tell guys what to expect and what stage they are at.