No advise on seroquel. I have 25mg tablets I use for sleeping as needed, but no other experience.
Congrats on finally getting in to see your doctor. I'm glad it went well and I hope the medication works for you. 2-3 months is a long wait for your next appointment so I'm sorry about that part, it sucks

I hope you can be well enough to manage during this time. (((Hugs)))