Your insecurities and fears are normal and understandable. There's no doubt we are living in times of great uncertainty. But you made a great point yourself when you said that many people suffer because of man-made and natural disasters. So in that since, mankind has an incredible ability to inflict enormous suffering on it own kind. Often times, this suffering comes in the guise of religion itself. And, from a geological point of view, we are living on an extremely violent planet; There has always been killer typhoons, hurricanes and even massive impacts from meteors and asteroids that have wiped almost everything off the planet. But, thank God, life has always found a way to survive.
My problem with religion is that it has an uncanny way of using the natural cycles of nature (and the unnatural evil of mankind) to justify their concept of what God is. Jehovah Witnesses are no different from many other religious cults who produce magazines that 'hit a nerve' with the vulnerable who feel fear and uncertainty about the future. You are not alone. Indeed, far from it.
Remember, religion is big business and cults are exclusive by their nature. But spirituality is personal and also has an openness that cults don't or can't understand.
God brought you into this world on your own, you will leave it on your own and you will answer to Him on your own. If you join a cult, you are cutting yourself off from God's creation of humanity. Cults always quote from the scriptures saying not to be a part of this world, but in fact, this is the very world that God gave us to try to help one and other. Not being apart of this world means trying to avoid the many vices that it enslaves us to. That's a man's personal battle, not another man's set of rules to enslave us even further.
I don't agree with homosexuality or same sex marriage , but that doesn't give me the right to judge those people. I don't know where they are coming from. And because I only see them as human beings, I would hope that they would see me as the same - a human being.
Let God be the Judge of all of us on a personal level. I wish you well on your own spiritual journey, whatever you decide.