You get over it with time, best way to deal with it currently is to get your mind off it, like play games or watch tv.
Oh and also don't take psychedelics like weed or shrooms cause they definitely make paranoia worse.
Alcohol lesser so, but from experience taking alcohol gives you emotional highs and lows, so while you're suffering from anxiety, paranoia etc it's best to refrain from it to maintain a steady emotional level.