Your symptoms are somewhat confusing. If I read you correctly, it sounds like you are suffering from depression
with paranoid ideation and possible psychotic features. The treatment of choice for this is an antidepressant and possibly an antipsychotic medication
as add-on therapy. An antipsychotic agent alone will not help lift your depression much and you might still be suffering depressive symptoms after a year because of the ack of taking an antidepressant. You should discuss this with a psychiatrist
who can help orient you with better medication choices. Best wishes and do feel better!