Yes, you watch a lot of porn, its called being desensitized (meaning the more you see something the less effect it has on you mentally and physically...) hope that helps.
Your 17 thats normal lol.. tbh it gets worse.
You got him wore out already lay him too rest best thing you can do is lay off awhile.
I always get erect when I am kissing my wife and always did when I was with a girl. Many other things can arouse me when I am thinking of what I'd like to do sexually, reading erotic stories, or watching sexy movies. The most aroused I get is by kissing and foreplay with my wife.
Yes it is normal erections just come and go some of them you can not control. Do not worry you are not the only one.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.