Most strains have the potential for paranoia, this is caused by high thc potency and little to no cbd compounds, thc effects the part of your brain that is responsible for memory and cognitive reasoning, by fitting into receptors we already have in our synapses that control those effects. Cbds on the other hand are another grp of compounds found in trichromes that dont mature until the end of the trichrome life cycle. Plants that are harvested early contain only thc, the effect can lead to mild hallucination and paranoia, when a plants is left until a good portion of the trichromes have turned a milky/amber color, cbds are now present, they are responsible for the euphoric and narcotic feeling, helping to cancel out some of the thc's hallucinogenic properties.
This only really helps when growing your own but i find when purchasing marijuana it doesn't hurt to bring a 10x hand held microscope and make sure what u are getting has that trichome color you are looking for, otherwise look forward to a short, cerebral high with plenty of panic attacks.