Can confirm. I got to the point where I stopped shower for multiple days because I thought it would take to long. I know that it should take twenty minutes top but in my mind my time estimate was closer to an hour. I literally did nothing but smoke weed and watch Netflix, nothing else was interesting enough for me to bother.
That being said, avoid weed on depression, and find dissociatives. The third person perspective on your life they provide can be a life saver. Just be careful as you can get quite intoxicated by this effect.
On a bad day people can find "go to shop and buy myself an icecream" an insurmountable challenge.