Seroquel Increase Messed Up My Sleep Schedule

A temporary increase on my Seroquel has seriously messed up my sleep schedule. I was taking 25mg and I felt like it wasn't doing what it was supposed to be doing for me. My psychiatrist increased me to 50mg and suddenly I went from extreme insomnia to oversleeping for hours. I talked to my therapist and she recommended that I tell my psychiatrist. I did and I've been lowered back down to 25mg but my sleep hasn't regulated back to what it was. I've never in my life had to set multiple alarms to wake up, but now I'm sleeping through 5+ alarms and being super late to work. I don't know what to do... I'm worried that this issue will cause me to lose my job when I only just started it. I've slept through therapy sessions and my therapist had to warn me about the discharge criteria for missing too many appointments. She's very understanding and is trying to help me so it's not like she was rude about it or anything, just worried for me because it could lead to me losing the mental health services. Has anyone else experienced this? Any advice? I've never struggled like this with waking up. My partner (long distance) suggested that I roll out of bed onto the floor when my alarm goes off to discourage me from going back to sleep, but I can't go *back* to sleep if I never woke up in the first place.