Tips and tricks while weaning of Seroquel

Hi everyone. I have been on Seroquel for 17 years with lamotrigine for Bipolar 2. Late last year I had my diagnosis changed to severe ADHD and am now weaning off my meds. Weaning of lamotrigine went fairly well, but I have just stopped my lowest dose Seroquel two nights ago and cannot sleep. The first night I didn't sleep at all. Last night I slept maybe 2-3 hours broken. Does anyone who has weaned off Seroquel have any advice for tips and tricks to help get my sleep back? I did notice last night that taking Magnesium helped with the muscle twitching.