Do you intend to join Islam? If yes, then you are not wise, look around the world and see the pain, war, and deaths that Islam has caused.
Not sure there was even a hint in the OP that the person was considering Islam. If anything, sounded more like Islam would just be a trade-in on what the OP is currently already doubting.
Do you want to become an atheist? Truth is that a good percentage of atheists are into one fraternity or the other? Which power is behind fraternities, is it not the devil?
I am an atheist - and I don't know of any such "fraternities." There are some atheist groups - just like there are Christian groups. I don't belong to any of them, but I would like to ask - does the fact that any particular person might like to get together with people of like-mind to socialize mean that some greater evil is at work? If so... then I know some pretty "evil" Christians who are getting together
EVERY SUNDAY!!!! Can you imagine?!?!
I had a friend who claimed to be an atheist, I later realized he is a member of a cult.
What was the basis of the "cult," if you don't mind me asking? As in, what was the "hook" by which people were being drawn in or wanted to stick around? As a skeptic myself, any group proposing to hold the keys to some greater "truth" already has a serious down-vote from me. And most of the atheists I know are pretty hearty skeptics. Not all, but better than half for sure.
Leave the Catholic Church and join a good ministry. Yes God exists, most believers who keep talking about God aren't doing so because they are stupid, rather they continue in the Christian race because they have experienced the power/presence of God.
More likely they don't know any better, and they find themselves surrounded by mostly Christians in their neighborhoods. So if they want to join some group for social inclusion that is deemed "normal" by those around them, there sits an obvious choice above others. Hopefully that changes. "God" willing, eh?