Talk to Sexologist on Sexual Disorder

Hi, I am 31 years old from Pakistan, since childhood I have feelings for the same gender, due to which i masturbated excessively and watched porn a lot. Now, at this point my penis is quite small in flaccid around 1 inch and if somehow i get to erect, it's almost less than 4 inches in size. I am looking for treatment options if there is any possibility that if I can gain the same vitality and size and girth again. I am quite depressed because of this and unable to go for any marriages option. I need help. Please help me. Guide me. What should i do.