I am now around 13 months back behind the wheel.
Insurance can be very hit and miss on drink driving.
I was banned for 18months and reduced to 14 with the course.
I am (now) 34 so that might help, insurance pre ban was around 800 (high performance car, no modification).
1st year after the ban was 1350 (Aviva, directly on their website), renew somehow was over 2k.
switched to esure flex, now around 800 again.
But some background infomation, I was not in a accidient, just stopped by police. so I manage to keep my now 10 years NCD.
I also had a non-fault claim back into 2020.
Hope that helps.