hey guys,
i am 20 year old and my body is too slim , because of this i lose my confidence. In my friend group all are good looking and attractive. I also want a muscular and lean body and look attractive. Can any one suggest me what should i do for it?
You also need to accept that there are various body types. Some folk have the genes for 'slim' and so just need to make what they can of what they have, not "ask for the moon".
(Ultimately acceptance leads to contentment. So long as you make the effort to achieve what you wish.)