Horrible fluff, too informal style for the rest of the document, like you're trying to befriend the reader of a fiction story.
"After talking, I began working a located many more security problems that needed to take precaution."
It's nonsense, how did that get past your proof read... oh.
It looks like you have some good points to make, but I'd never have found them if I wasn't hunting for things to comment on. Good bits:
Pornhub - keep the job in; finding a vulnerability, reporting it and turning it into a job, that's a great thing to have in there. Maybe describe it as a site with however many users/hits/revenue and more details available.
PHP, Javascript, jQuery experience. Knowledge of XSS/SQLi/salted password hashes.
Security flaw finding - if you did any for money then put that as work, if you did any for free put that as some kind of personal development / evidence of interest.
MyTrueColor, Shuckit, Neverblue - draw more attention to these as examples of motivation and interest (if they are valid - mytruecolor and shuck.it don't seem to load).
Github similar site - Yes keep this (what did you do, specifically?)
What competitions did you win?
Rewrite it into a page or so and keep the focus on what you did / can do in technical terms, what you have done, and what you want to do for {prospective employer}.