help — in fitness & bodybuilding?

Hello everyone.. i’m 19 year old..6 feet tall.. and my weight is 69 kg.. my physique is average ( more than slim).
and i’m new to gym.. what sort of exercises should i concentrate for good physique..? and what sort of diet should i take ? Some say supplements aren’t good for health. please help me in advising the exersices, food and whether to take supplements or not. I’m a vegiterian and i belong to AndhraPradesh ( India).

all you have to do is eat light, healthy, and exercise.

SPEED,AGILITY,REFLEXES = QUICKER,FASTER & STRONGER