Stop Snoring Remedies

I have tried losing weight, snore strips, with alcohol, without alcohol, two pillows (from three), one pillow (from two), Snore Extinguisher throat spray, staying on my side while asleep, allergy medication, generic benedryl, and prayer. My boyfriend has to sleep out on the couch because it gets so bad and it makes me feel horrible. Please help!
I’ve tried the nasal strips and they don’t seem to help I’ve tried them by themselves. I have even tried vicks with the nasal strips, to no avail.