fume, when I was your age, I wanted one of everything and it all. It was not until I began my serious study of gun fu in my mid-20s that I understood that my software should control my hardware choices.
You may realize that you no longer need or like a particular weapon, however, funds spent on pursuing education are never a waste and will continue to pay dividends for the rest of your life. If your parents are giving resistance to buying you "yet another" pistol, redirect your attack to a class.
"If the bridge is blocked, roll around your obstacle and find an opening." Chinese boxing axiom [gong sounds].
/s/ sibo Tejon