I'm 20 years old,6'3" tall but my manhood is only 5.6 inch when erect.Is there any chances for further growth?

I'm 20 years old ,6'3" tall but my manhood is only 5.6 inch when erect.Is there any chances for further growth? and in addition since last couple of months I'm suffering from wet dreams at least thrice in a week, I don't masturbate.Please answer me and don't be sarcastic.