If we paid attention to what Jesus said about that Kingdom, we would not be so fixated on a future series of events about the heavenly Kingdom having effect on Earth that we failed to appreciate its power right now.
Jesus said in the first century A.D. that believers in Him are to "Seek first the Kingdom of God and HIS righteousness" as our priority. Then other, necessary things will be added to us. But the seeking has to come first! How do we enter into it? Where is that strait gate we must go through? It is Jesus Himself - He is that strait gate. We cannot try entering via a religious group's instructions, or accept anyone trying to tell us it's all future. That is contrary to what Jesus told us. He said that those recognising their poverty of spirit have the Kingdom of Heaven right now (Matthew 5:3). He used present tense, not future tense. He also linked thirsting after God's righteousness with that, even if one is "persecuted because of righteousness, for theirs is the Kingdom of Heaven." (vs. 10) Present tense, not future tense.
Recognizing Jesus as the King of that Kingdom is key to understanding the on-going power and work of God's Kingdom. We have to bend our knees in Jesus' name and then we become subjects of God's Kingdom, even now, while we are on Earth. We are appointed to be ambassadors for Christ right now (2 Cor 5:20), representing that Kingdom even now, while we are on Earth.
Believers in Jesus know He is the King of God's Kingdom. We pray to know God's will so that we can be aligned with it. We desire God's will to be done on Earth as it is in Heaven, as Jesus told us to pray. That is why we pray - to get clarity on how we fit in to all that, right now. We concentrate on the here and now, but many become obsessed with future events, focussed on prophecies about an eventual expansion of God's Kingdom. Staunch Bible preacher C.H. Spurgeon took the view that a strong indication of a bankrupt ministry was an emphasis on predictive prophecy. That is exactly what legs down many denominations. It always has done, over the centuries. It was particularly obvious in the 19th century when lots of groups predicted dates for Jesus' return - many claiming that it would be invisible. They were all proven utterly wrong, but that has not stopped their leaders making excuses for why they got things so wrong, and they continue adamantly telling members that now they have clearer 'light' on those prophecies, and the current teaching is 'guaranteed to happen soon'.
Christians are already in the Kingdom of God, and they have learned that it is HIS righteousness they seek. That is what they pray for, to know how to stop seeking their own righteousness and desiring only His, that it be reflected in their lives as subjects of the King. This is a present reality for them, and they do not waste their time devoted to future ideas; they get on with promoting that Kingdom right now, here on Earth, pointing others to Christ as the King, not to ideas of utopia in the future. God has the future totally in hand. Our job is to live each day, one day at a time, as those who commend Christ the King to others.