Believe it or not, it's good people correct you on your grammar. Otherwise, you'll keep making the mistakes. Don't blame your kindle on making those wrongs because you don't look over what you write. You should take some time and correct those mistakes.
People of the internet can be harsh and rude, but so can real life. Don't take it seriously if it bothers you, or you can take what they said into consideration.
The students at your school are just asking for a gun/bomb in their school. You're right, though, know one is invincible. Schools are no different from Columbine's bad luck.
Are all guys this annoying and gross!!!?! No, all guys are not all annoying and gross. Stop hanging around the wrong guys so you can stop saying this.