I am 24.but still my growth is not perfect.and i look like a 17 year old kid .can i have a answer?

See your Dr: Some 14yo look 20, and obviously, some 24yo look 17. If you have pubic hair & development consistent with adult male, then perhaps more weight training would help give you the proportions you seek, or growing a moustache (but be patient). Can also discuss w/your dr, who can do exam & may check blood tests to see if any problem present.