I am curious about this issue. Personally, I never felt I would be good enough for a split second. One would think that knowing you can not be good enough to survive would it make it easier to leave the Witnesses and live for the present. This seems related to Holy Spirit claims by individuals. Part of me thinks it takes enormous hubris to claim special gifts not given to others. Yet Paul claimed such a gift. Jesus' followers saw a benefit to imitating him. It all revolves around grace for me.
I guess the Witnesses don't believe the Holy Spirit motivates individuals -- only the GB. There is no salvation save the GB. Altho I was young, I don't recall any meetings where individuals were praised and encouraged. Terror of Armageddon seemed to tbe sole message. I fail to see the good news in Armageddon. I grew up during the Cold War and nuclear brinksmanship which reinforced the Armageddon concept. The President of the United States was always discussing the secular form.
I am curious. Of course, it is not scientific. Oh, the nightmares, the lights left on at night so I could see during Armageddon and always chase away demons. I used to have night terrors. Years after I left, I did a great job of discussing the JWs with a JW lady. My siblings were so impressed. Later that night, the whole family had to get up and calm me down from a night terror.