The end of the world

Many people recently (more than in the past) have been saying the end is near. To most Christians, it is a feeling of excitement. But for some reason, it isn't for me. I have a fear of the unknown. This is not to say that I don't know what happens after death, but I don't understand it. I know that I never will understand how to even grasp the concept of forever, but the fact that the is absolutely no end terrifies me. I am excited to praise God forever, whatever forever means, but time is a security blanket for me, and probably for many others, too.
Another reason that I am not as thrilled as I feel I should be, is that I want to experience things on this earth like marriage, the birth of a child, the love of raising it. These things will not be in Heaven, since there will be no families.

Luckily I know that everything is predestined in God's eyes, what will happen will happen, worrying won't change anything.