I don't smoke cannabis nearly as much as I used to. When I was a daily user it didn't have any intellectual effects so much as emotional ones. I would have been baseline mildly depressed and weed made it so much worse. That's not going to be a surprise to any objective observer.

When I do have it today I make sure to seek out the weakest stuff I can. It's annoying that you might just have one option below 15%. Of course edibles are a far superior option in legal states. Easy dosage and no damage to your lungs. I'd also suspect that the milder (but longer) highs are easier on the brain.