Hi @buzzy1, I will start by welcoming you to Mayo Clinic Connect. Glad you found the community. Connect is a patient forum and not monitored by Mayo physicians, but suggestions and personal experience is shared between members. I am happy to hear that you are slowly tapering off rather than going cold turkey.
You will see that I moved your post to this discussion regarding getting off of seroquel (Quetiapine) so you can read other members dealings and maybe connect with one of them.
Nine years is quite a long time. Are you being monitored by your physician to make sure you avoid heavy withdrawal?