kill ur self

"What can one do to get rid of their nervousness and be so cool?" Go out and gain experience. Lots of it. You can only stand up after you've fallen down.

"What can people do to get rid of their anxiety and be real cool ('calm' is better) ? " Slang: "Wat can ppl do to get rid of their anxiety n b real kool ? " :)

Breathing, friend. Deep breathing. And avoid eye contact and looking at people when you're nervous, focus on what you are doing and why you are around people. Then, as you age you will become much better with people. After all, they don't want to make you feel nervous, they don't know what they are doing to you. (If it's people who make you nervous)

maybe kill someone is better than killing my self ... still young dear .. bur how can i get experience from getting out and how it will make me cool??