Can someone please help or give me a fitness program to loose my weight?

Well 1st of all this is just a dummy account... I'll admit that and here are my reasons... I'm already a college teen who's around 5'5 or 5'6 and my weight is around 70kg... I'm a guy who's easy, kind and fun to get around with, specially with friend girls who really liked for my attitude and character... But there's one thing that makes my self esteem go down and that is having a small penis(not even close to 4inch when erect,used to being laugh by others so its ok if you think its funny) Some of my friends told that loosing my weight can increase my penis growth... and some research of mine proved it too.. so if there's anyone concern i really would much appreciate it... by the way please no vitamins, pills or anything like that just want to loose weight in a natural way... i want to have more confidence in myself :(