I'm glad you're seeing a doctor. You might want to ask him/her for medical help in quitting drinking. When you stop your withdrawals can be anything from inconvenient to severe/dangerous, so please tell your doctor you're quitting and ask if s/he can help.
As to your bf drinking... it may be somewhat of an obstacle for you to stop drinking while he's in the home still drinking... but it can be done. Remember, you are giving it up for YOUR health and well being. Do whatever you need to do to stop and to stay sober, regardless of what he does.
We are here to offer support and information for you in your quest to get sober. Come here to vent, to ask questions, or just to read our stories of recovery. I wish you the best.
Welcome to SR!