Welcome João!
What you are experiencing is very common for JW's that leave the Watchtower organization and still have family in. It is most commonly known as cognitive dissonance, which in laymen's terms is the refusal of your loved ones to entertain contrary beliefs as the outcome is too difficult or devastating to their current belief system. Basically, current JW's have spent years buying into the ideas that the Governing Body are the only way to a relationship with God. The GB has inculcated the belief that anything contrary to what they teach is apostasy and leads to death. For someone to realize that this isn't the case is psychologically devastating! They don't want to accept that what they have been living is incorrect and the consequences of realizing that forces them to accept that they have been living a lie.
I have a number of family members still "in" the religion. I think some are so entrenched that they just refuse to open their eyes. I have others that suspect it's not "The Truth", but to leave would ruin their current lives and relationships...so they stay in without fully believing.
It is difficult to see loved ones ensnared, but love and patience can slowly help them to start to critically think if they are so inclined. Wishing you the best in your journey with your family.
TYA