I don't see any problem, we are still in the "heavens and the earth, which are now", which is the 2nd one.
The 'new heavens and a new earth' the wicked will never see.
But before that final world, Jesus must reign over all His enemies with the "rod of iron" prophesied in both the Psalms and in His Revelation. And that is what the "thousand years" of Revelation 20 is about, and why it is a future literal time.
But instead what folks like you have believed, is a doctrine from men and not from God's Word. Amillennialism treats the 1,000 years of Rev.20 as symbolic, but it cannot even stay with a simple 1,000 years idea, because with their view Christ's reign began at His resurrection, and that was over 2,000 years ago! How can someone turn 1,000 years into 2,000+ years?!!! It's ludicrous! And that's only one reason why it's a doctrine from men, and NOT from God's Word.
WARNING TO BRETHREN:
Beware of the doctrines of Amillennialism, which believes we now, are already in Christ's Kingdom in this world today! Jesus was emphatic that His Kingdom is NOT of this present world! (John 18:36). His Kingdom literally will begin at His future return. Within some of those Amillennialist groups, they also go farther in the false doctrine and preach the lie that Jesus' 2nd coming will not be a literal return, but instead is a spiritual return only! So what's up with all that?
What is up is the ordained kingdom of the coming Antichrist, the ten horns, seven heads, and ten crowns of Revelation 13. We today know it called by other names, like "a one world government", or the New World Order, etc. One of the main deceived groups of Christian brethren today are those who are working FOR that one world government plan. The doctrine of men that teaches Jesus' Kingdom is in the here and the now, is a pet doctrine of their's. Who wouldn't want world peace, and a chicken in every pot for everybody? It's a noble idea, and the reason is because that is what our Lord Jesus is going to do for us in HIS future Kingdom to come. But the children of darkness want their 'king' to rule this world instead, and they intend to set him up as king of the world in Jerusalem in our time. Don't go with those, don't heed their devil's doctrines, for they will lead you away from our Lord Jesus Christ Who will return AFTER... their false-Messiah comes to Jerusalem first.