rather, Have you gotten any professional counselling? It's done me more good than I ever thought it would, and has helped me maintain the peace with family.
I should start a thread about my own experience, but I suspect that the fact that you shunned your mom for a year is probably deeply ingrained in her mind. She's probably somehow happy that you're talking to her at all, regardless of the fact that it's bashing JWs. This is a place where professional counselling has helped me. I've achieved a level of inner peace without blasting and alienating my family that are still 'in'. I've been able to say enough to my parents, and can still bring things up, in order for them to respect the fact that I'm far better off having nothing to do with that religion. And I've been able to prove that we still have plenty to talk about and still love each other.
The strongest point I think I've made with my mother is that their false promises of "armageddon soon" made a mess of my life and turned me into a depressed, suicidal, lifeless slave to fear and abuse. My mom used the same line:
"They've made mistakes before, they used to smoke, celebrate Christmas, etc. The light gets brighter and they never said they were inspired by god."
To which I AGREED! "Exactly, they're not inspired and they've made tons of mistakes before. So we have every reason to believe that they're still not inspired and are still making mistakes. We can't rely on what they say because they can 100% change their story in one sentance of a WT article and suddenly it's all my fault for ever having trusted and believed the mistakes they had been telling me to believe. Today's new light very quickly becomes tomorrow's old light, once time proves them wrong." Basically, mom understands that expecting me to trust them when they've only been proven untrustworthy makes me depressed and suicidal. The fact that I'm faded and very happy with the direction my life is going... and that we talk on the phone or I come visit every week, puts her in the position that she's not going to rock my boat.
I've had much more successful conversations with Dad about the screwed up JW doctrines. Sometimes he brings things up that bother him, or I'll ask him about things. He will hear me out and can only agree with my facts. But he's old and change would be too hard for him to deal with. He does less than he used to in the cong, and is more interested in things like travelling, having fun, and helping people.
In your OP, the first convo with your mom, you discussed a lot of older doctrine which most JWs are eager to ignore and dismiss. I've had a fair amount of success reasoning on the blood issue. Granted, I would still choose to avoid a blood transfusion, just as I would choose to avoid an organ transplant... unless either one were determined to be the only life-saving option. But on the issue of blood, one of the big historical facts that JW doctrine has ignored... and continues to ignore, is that the prohibition on eatting blood at the time of Noah and in the Mosaic Law was to show respect for the life of DEAD ANIMALS. When you really look at the context, it's clear that the prohibition would not relate to medical treatment using blood from live donors. It's a terrible misapplication and is the reason that Jews will accept blood transfusions. It's clearly understood from both a superficial reading, as well as deep analysis of the texts in the Hebrew scriptures that the prohibition on eating blood only applied to literally eating the blood of DEAD animals. Even at that, the law allowed the eating of unbled animals without serious penalty.
Of course JWs are then taught to point to Acts 15:29 where the "governing body" in 49CE said "abstain from blood". The problem there is that the "governing body" also said "keep abstaining from things sacrificed to idols" as the very first thing in their list. Just 6 years later, in 55CE, Paul wrote in 1 Cor. 10:25-30 that eating food sacrificed to idols was completely a conscience matter. He gives no instruction to track down the butcher and make 100% certain that the meat was never offered to idols. This makes it quite clear that what was stated in Acts 15:29 was no authoritarian decree handed down from God for eternal observance. We also have to remember that the original purpose of the meeting in Jerusalem was to decide on the circumcision issue. The bottom line of that meeting wasn't to say that 21st century Christians were to refuse medical treatment that would include blood transfusions or blood fractions. The meeting basically determined that removing the male foreskin wasn't required for a man to become a Christian. Yet, what was the very first thing related after that decision in Jerusalem? Paul circumcised Timothy.
What happened in Jerusalem was hardly a decision of great authority by some "governing body". It's WT that tries to turn this little event into a foundation for autocratic authority. WT condemns the Pope for assuming divine authority as Christ's only earthly representative who makes decisions that the faithful should never doubt or question. Yet the same WT has a GB that assumes divine authority as God's only earthly representative who makes decisions that JWs must never doubt or question under penalty of disfellowshipping. Which brings us to yet another CURRENT procedure of JWs that is completely unscriptural... judicial committees and disfellowshipping are a gross misapplication of a few Bible texts.