Your symptoms are unusual and concerning. You have feelings of grandiosity (i.e., feeling special). You also hear voices, experience paranoia, have trouble with social relationships, and have bouts of depression. With the exception of depression, your symptoms are characteristic of psychosis. Symptoms of psychosis are associated with schizophrenia, schizoaffective disorder and several other mental health disorders. Individuals who experience a milder version of psychotic symptoms might have schizotypal, paranoid or schizoid personality disorder. I cannot say with certainly if you have any of the aforementioned mental health disorders. Only an in-person psychiatric evaluation could make that determination.
To answer your question directly, yes, there is medication that could effectively treat your symptoms. Antipsychotic medications can decrease or eliminate the voices, paranoia and your grandiose feelings. Antidepressants can help to stabilize your mood. You may also want to consider therapy to address your social interaction difficulties.
You have been experiencing psychosis-like symptoms since adolescence. These symptoms should be addressed and treated as soon as possible. Undoubtedly, they are negatively impacting your life. If left untreated, they may become worse and potentially lead to a full-blown psychotic episode. Medication would greatly reduce that risk and it could significantly improve the quality of your life. I hope that you will consider having a psychiatric evaluation and beginning treatment. I wish you the best of luck. Don’t hesitate to write again if you have additional questions. Please take care.