Hi,
You can save yourself a lot of heartache & time by fully realizing that Jesus is the "truth, the way, the life" (I'm not saying you don't). As Christians, Paul exhorts us to gather together, but this is not necessary for salvation. Some Christians are isolated from other believers, but they still have a strong relationship with God.
The book "escaping codependent christianity" is amazing, and cant be found on amazon, used, for about $4 (shipping included).
The JWs completely hijacked our faith, so it will take time to heal. Just don't get into another cult/cult-like group!
Much love!
P.S. - I wouldn't debate atheists on here much. Any proof you send their way will be ignored. I mean, they do have some major confirmation bias going on.