Hate to be the party pooper, but the proper diagnosis for "something like paranoid disease" is called "paranoid schizophrenia" and if you had any idea what that implied you might have sounded like less of a Jackass.
Your "problem" is colloquially called "teenage angst" and adequate treatment can be achieved by reading The Catcher In The Rye, listening to copious amounts of Grunge music and, if you have enough status among your peer group, fucking your brains out with someone equally confused as yourself but of the (usually) opposite sex, about whom only in hindsight when it is too late you'll realize that you actually cared about.
Your "problem" is colloquially called "teenage angst" and adequate treatment can be achieved by reading The Catcher In The Rye, listening to copious amounts of Grunge music and, if you have enough status among your peer group, fucking your brains out with someone equally confused as yourself but of the (usually) opposite sex, about whom only in hindsight when it is too late you'll realize that you actually cared about.