Being in a JW family while not being a JW yourslef is pretty hard. To them, you're just as good as dead because all unbelievers will be eternally destroyed at Armageddon. This problem exists in many other religions.
I once had a friend from work tell me that she wanted me to become a Christian like her because if I didn't, I would burn in hell for all eternity. I even had an old girlfriend (sorta) who eventually told me that she didn't want to be with a non-christian because she wanted to spend eternity with her soulmate in heaven; since I would go to hell she didn't want to continue the relationship unless I changed my views. I eventually dumped her because I couldn't stand someone trying to impose their belief system on me.
Anyway, let me get to the point. In this world, there are thousands of religions and dieties. All of them are pretty sure they have it right. Most of them say that if you follow the wrong religion or diety then you will be punished upon death. Many of them claim that the existence of prophecies and miracles prove that they are the true religion. However, which one of them are really right? Is there any definitive way to prove that you are correct and everyone else is wrong? No; there isn't!
An important question which arises is, "What if I am punished for worshipping the wrong diety?" Clearly, everyone can't be right at the same time. Therefore, it is pointless for one religion to claim superiority over others when it may also be wrong. Many theists feel that only atheists and agnostics are at risk of punishment. However, if we assume that God is real and we use their logic, then it is even more likely that they will be punished for pissing off the real deity by worshipping the false one.
Hence, IF God is real and is all-loving (which is certainly hard to believe), then it is not rational for him to punish someone simply because of their belief system. It is far more likely that he would judge someone over their choices in life and positive/negative contribution to humanity and the world. Therefore, it is pointless to worry whether or not God is real. Just do the best that you can do in life and make the best choices that you can make. That's all that really counts in my book.