You can definitely get fried on cannabis but you have to do it a lot, like multiple times a week for a while. In my mid twenties I smoked all day everyday for years and in my case it definitely left me paranoid and agoraphobic. That was more than a decade ago and I haven’t really smoked much pot since then (maybe once a year) and you end up making a full recovery after about 6 months to a year of no usage.