I don’t agree about that split but I know that’s your particular viewpoint.
Fact: There is no seven year time period in the book of Revelation, because Yeshua fulfilled the first three and a half years.
Google Jesus three and a half years to find the length of His ministry, or count the Passovers in John...
Astounding Three And One-Half Year Ministry of Jesus Christ!
https://www.cbcg.org/jesus/astounding-ministry-jesus-christ-01.html