Do you think it's okay that I'm a closest smoker?
Why do you hide that you smoke?
I've noticed that I keep smoking because it's fun.
It's wrong to keep a vice like smoking hidden from others since it puts on a false impression of yourself. If you know that others would disapprove of your smoking, then you should try to stop smoking. You will both be healthier and more stress free since you no longer have to hide your smoking from others.
Wtf, I'm not going to change anything.
You should try to come clean about your smoking habit since it is related to your health. Do you want to worry your friends and family like that when you develop a disease in the future from it? They could also might be able to help you quit if you were to share it with them.