Motivation for Becoming Free From Suffering

Due to my PTSD and ongoing situation dealing with a political cult, who instilled a constant fear of death in me for both my family and I, my motivations for spiritual healing are conflicting. I largely abandoned any idea of god because a lack of justice was due to the silence of others who didn’t want it to impact their lives. I want to retake that sense of curiosity and peace they stole to reconnect with not only myself but those I love. However, I feel like my fear of not existing after death, the sheer fear of my kids not existing is taking over all of my work. In trying to understand how to heal, I don’t know how to push that block or realize that fear is about excepting we may not go on after death. I think a lot of this is cult based from years of fear indoctrination but I can’t tell. So if someone is willing to share, is this specific fear of non existence at the core of your work? I appreciate understanding where others are coming from. And to add, I have had synchronicity, experiences that show me our connection to whatever source it is we name God but still, nothing moves this block.