It sounds like you need to be under much closer psychiatric care. You can't just take or not take an antipsychotic and at any old dose. Things aren't going to fall into place until you can establish a regular and effective medical regime. If Seroquel is giving you unbearable side effects then it's time to switch to a different AAP. Your doctor should be working with you on all of this. If he isn't then find another one and see him as often as you need to.