No, it is not. Prophecy is a part, but not most. Second, God never calls us to speculate. We have been given our marching orders and those orders never say speculate. In fact we are warned against speculation.
Timothy 1:3-7
As I urged you when I was going to Macedonia, remain at Ephesus so that you may charge certain persons not to teach any different doctrine, nor to devote themselves to myths and endless genealogies, which promote speculations rather than the stewardship from God that is by faith. The aim of our charge is love that issues from a pure heart and a good conscience and a sincere faith. Certain persons, by swerving from these, have wandered away into vain discussion, desiring to be teachers of the law, without understanding either what they are saying or the things about which they make confident assertions.
dad, the Revelation of Jesus pertains to us right now. Read it and be encouraged that the spirit of antichrist, which is active right now, is defeated by our King.
When you suffer trials and tribulations (and all of us who are believers do suffer trials and tribulations), know that God is with you.
Finally throw away that horribly awful dispensationalism that is not from God. It is a chopping up of the Bible and a man-made reconstruction that ignores the whole of God's word. It's just awful. I say it having spent over 30 years of ignorance within its humanist system. You need to toss that false construct out the door, put it on the fire and burn it.