It shouldn't.
You can't. Be content with what you have.
Most likely masturbate!
No. This is a little myth that worries a lot of young men, but is a load of rubbish. Lying on your penis will not decrease its length or width.
Make someone who brags that they have a large penis measure it.
The available condom sizes are enough to fit your penis. A standard condom can definitely accommodate your penis. Manufactures have a fair idea of all penis sizes and make them to suit all.
No. It can not. You are as large as you are because of genetics, just as in height.
The bigger question is how large it is when erect rather than flaccid. Overall it's a decent size especially for someone so young. But remember when it comes to sex size doesn't matter, the quality you bring and the feelings you have for your partner metaphorically make you and your penis larger than life.
No. He might be selfconscious or just scared he will have a heartattack or something. he might also be on meds because of the bloodpressure that might make it difficult to get a erection.
Hang? Your penis naturally hangs.
No, chlamydia cannot make your penis fall off.
There are no pills that will make the penis grow. The penis will grow at the speed, and to the size it is meant to be. The only way to make the penis longer is surgery, but doctors don't usually recommend it except in extreme cases.
How much blood does it take to make a penis erect?