I cant stop thinking about the theories of the end of the world?

Yeah. I get really sad and overwhelmed about it. People suck. If we are in end times, [I think 3 or the 4 horsemen in Revelations have arrived] you have to realize it is God's plan. No amount of you fretting over it is going to change it and when do, you are sinning against God because you are not trusting in Him. It is what it is. It is His plan and it must come to p. That's why it is so important to be right with Him today.