Does anyone have experience with quetiapine?

I've been on this medication for quite a long time, probably 8-9 years. I haven't really had any complaints about it, it helps me sleep and I cannot sleep without it.

I just read a bunch of terrifying things about it on the internet and now I'm actually petrified. It says it can cause issues with long term use. But I'm also very worried to come off of it because of my sleeping issues.