How To Improve Beard Thickness And Body Muscles?

HI Doc,
I'm 26 years old mail.I look much younger than my age.I look like 18 years old.I have little beard on my face and chest.It should not be hereditary problem because my father is and grand father was having thick beard.My concern is not to have only thick beard.I want to look according to my age or nearer .Looking 10 years younger is totally frustrating .I'm 5.7" tall and 57kg.I'm Indian