What Is The Treatment To Increase The Penis Size?

hi. i am 22 years old.the size of my penis is about 1 to 1.5 inch in normal and 3 inch when erect; i used to masturbath daily earlier . does this also effct the size;also my voice on telephonic conversations is like a girl? does this create any problem in my sexual life or reproduction? and how to get rid of that? plz help