Welcome here Fadeaway1962 !
First of all, I am very sorry for your loss, it hurts, both my JW Parents died in the last few years. Even though we were estranged because I walked away from the JW's, I still loved them dearly.
I was born in, many decades ago, and stayed in for nearly six decades, so the Mind Control was strong in my case too. I used a number of methods to combat it, because it is multi-faceted. First, I decided that as I knew the JW Org had lied to me, I would lead a Facts and Evidence based life, facts and evidence that would bear any scrutiny. That blew all their Doctrines and teachings out of the window. All that lingered was feelings, first of distrust of what they call "worldly people", also of fear of Blood , and slightly, of Demons. These feelings were expunged by fact checking, and then by actively challenging them, by making friends with a good number of what I call normal people, by Donating Blood, and just doing many things, and saying many things JW's would disapprove of, with a face like a bulldog licking piss off a thistle.
I found that as time went by, all traces of JW thinking, and of JW personality faded away, totally. I am now the Real Me ! and happy with who and what I am.
I hope this may be of help, ask away here, we are here to listen, and good luck !