The 7th seal only showed John 30 min of silence in heaven. It does not have anything to do with the trumpets.
It's a solemn procession because of the wrath that is coming.
Revelation 7
1 And after these things I saw four angels standing on the four corners of the earth, holding the four winds of the earth, that the wind should not blow on the earth, nor on the sea, nor on any tree.
2 And I saw another angel ascending from the east, having the seal of the living God: and he cried with a loud voice to the four angels, to whom it was given to hurt the earth and the sea,
3 Saying, Hurt not the earth, neither the sea, nor the trees, till we have sealed the servants of our God in their foreheads.
First "And after these things" is a connecting clause to the previous vision, the 6th seal.
So after the 6th seal, when it's announced that the wrath of God is come, the Angels that are going to dispense the wrath are instructed not to do it yet.
Revelation 8
1 And when he had opened the seventh seal, there was silence in heaven about the space of half an hour.
2 And I saw the seven angels which stood before God; and to them were given seven trumpets.
3 And another angel came and stood at the altar, having a golden censer; and there was given unto him much incense, that he should offer it with the prayers of all saints upon the golden altar which was before the throne.
4 And the smoke of the incense, which came with the prayers of the saints, ascended up before God out of the angel's hand.
5 And the angel took the censer, and filled it with fire of the altar, and cast it into the earth: and there were voices, and thunderings, and lightnings, and an earthquake.
6 And the seven angels which had the seven trumpets prepared themselves to sound.
So they get an order not to start yet, then the 7th seal is opened, the 7 trumpets given out, and then the angel using the censer gives the signal to begin.
Let's look at something else as well.
Luke 17
26 And as it was in the days of Noe, so shall it be also in the days of the Son of man.
27 They did eat, they drank, they married wives, they were given in marriage, until the day that Noah entered into the ark, and the flood came, and destroyed them all.
28 Likewise also as it was in the days of Lot; they did eat, they drank, they bought, they sold, they planted, they builded;
29 But the same day that Lot went out of Sodom it rained fire and brimstone from heaven, and destroyed them all.
30 Even thus shall it be in the day when the Son of man is revealed.
31 In that day, he which shall be upon the housetop, and his stuff in the house, let him not come down to take it away: and he that is in the field, let him likewise not return back.
32 Remember Lot's wife.
So what's the picture painted here?
That it will be normal for sinners up until the day that Jesus comes back, but the righteous will be mocked and persecuted. Both Noah and Lot tried to warn people but they were mocked.
They were also both taken away to safety just before the wrath of God started, not at the end of it, but just before it started. They did however have to endure persecution up to that point.
The wrath of God began the same day they were taken to safety.
and Jesus says that's what it's going to be like when He comes back.
That for sinners, life will go on as normal, but those who will be rescued are persecuted
Then they're rescued
Then wrath on the sinners.
If it was like your position... who's getting married during the 5th trumpet?
Who's planting fields during the first trumpet? All the green grass is burned up.
Mind you you know, 2 Peter 3, talks about when the day of the Lord comes the whole world is set on fire?
The first trumpet is setting the whole world on fire. Trees are harder to set on fire than grass, so, 1/3 of them burn up, but the underbrush is torched.
If the first trumpet is the same day as the 6th seal, well that all falls into place, shortly after the 6th seal the 7th seal is opened, half an hour after that, the whole planet is set on fire.
Your position would have the whole planet set on fire BEFORE Jesus comes back.