People typically stop worrying about who's "cool" when they graduate high school. In adulthood, there's people who live healthy, normal lives, and there's people who do things like staying up until 4am on a Friday night projecting their insecurities by having conversations with themselves on message boards in an effort to ridicule other people who have, for what ever reason, scarred them for life.
It's not that you're not "one of the cool kids." It's that there is something seriously wrong with you, and you should see a professional. There's still time for you...
...It's sad that you would interpret it this way... That living a healthy, normal life is "cool" as though it were somehow unattainable for you and many others.
You weren't destined to live life of a worthless and friendless a piece of garbage, you've just chosen to live that way. Being argumentative internet guy is obviously your coping mechanism, your subs ute for substantive personal relationships, but it can't possibly be enough in the long run.
In all seriousness, if you have a job with health insurance that covers therapy I recommend giving it a shot.