Complex sentence: A side of effect of not using glamour results in the loss of sanity for Lunars and Winter is afflicted with bad hallucinations, and as the book goes on, her mental state starts to slowly deteriorate.
Split into simpler sentences: A side of effect of not using glamour causes loss of sanity for Lunars and Winter is afflicted with bad hallucinations. As the book goes on, her mental state starts to slowly deteriorate.