Great idea to ask a pharmacist about Seroquel dosages.
Blue, I'm guessing the Adderall brought on a psychotic episode which is continuing despite your stopping Adderall. Triggered episodes don't always stop immediately upon withdrawing the trigger (in this case, Adderall).
The weekend gives you some time a space to really try to take great care and see if you can get ahead of the psychosis. It can be like trying to put out a fire that Adderall had started. You need meds, sleep and time to cool off the brain, to dampen down the flames, so to speak.
You are doing a great job!

WC