What experience I got when I was 19 yrs old

I watched a show about a person who died from air embolism didn't look like very much air at all and then I was like I need the experience so I got a syringe with a needle and then I got like a half a cm long and wide air bubble in the syringe and then I injected myself with it and I thought that there was a good chance I would die and I didn't and I am fine, I am 27 yrs old. This was supposedly just as much or more air than what killed the person. This was to stop terrorism.