Hie i am abhijeet , im 5 8 in height my wieght is around 50-54 , but iam very think my waist is 30 and u know my wrist and my chest are also on thinner side , u can say im little bit more than a slim girl i mean my body , but i really want to build my muscles and have some mass over my body , what should i do ? please tell me in detail my age is 25 now .