Seroquel + lexapro

Hey. I've been on 20mg of lexapro for the past 2 years and found myself relying a lot on my clonazepam in the past few months since I've been feeling more anxious overall including insomnia. Today went to see my dr that prescribed me seroquel 25mg at night to help with the anxiety and sleep but also to have me cut on the clonazepam. I just got home and did some research and I'm honestly very scared of all the side effects. Anyone here have any experience with both of those medication?