I'm really glad you are keeping a record.
When this happened to me I didn't and as a result it was very difficult to show that I had been the victim of persistent bullying almost since day one in the job.
I luckily found another after my manager started making snide remarks to my wife on the train journey to work (we live close to each other) - it showed me that I needed to get out, the situation wasn't going to improve.
Keep it in the day, if you can. Day by day. It's tough but sometimes putting one foot in front of the other is the best response.
Start updating your CV, looking for jobs, maybe an interview or two for practise. I take your point about seeing it through, but a) you will be taking control of what you can change, and

you never know...
Serenity prayer...
Always say "Thank you". It makes good people feel better and bad people feel worse. Seriously, your continued professional response will be the best rebuke to a bullying manager.
My best wishes
TI