very haveing masterbation

I started masterbating when I was 15 years old. this habit i learn from my friend.first time i am felling very good and very enjoyable.Then when one i ot alone in my house I started masterbate. Till then I couldnot resist myself. Now I am 24 and I am try stop it .but i dont get out .allwyes you are telling it is very natural and good.ok?But,first time my gender was very strong and big and street and lentgh.but now,after too much useing i have got a un street,small,week,power less gender.

so,now what will i do?
I wont take masterbation?

how way i will get a powerfull gender and healthy life?

if,i will be continue,How is the system of healthy masterbition and what is tolls to useing for masterbition.

Plese,Give me advice.As soon as possible.