Obviously it’s a lot easier to imagine the world as a plane than a sphere. But that simplicity rapidly goes away when you stretch it to accommodate all of the weirdness we see in reality, which I tried to point out. The globe model takes a bit more thought investment upfront but you don’t have to stretch it at all to fit the evidence, it pays off in the long run.

The earth spins around relative to the sun, therefore time zones and sunsets.

As for New Jerusalem, I haven’t seen it, and you haven’t seen it. We know it is square, but that doesn’t mean it looks like a cube with flat faces. We don’t know if the height is measuring the wall, the tallest building, some mountain inside the city, or something else. We don’t know if the base is concave. This topic contributes nothing to either argument.

I have studied flat earth for over 3 years now and am 100% convinced

It really doesn’t matter for how long you have let yourself be lied to. You say I misunderstand, but fail to specify what step in my logic I got wrong. By retreating with such a non-answer to all of the issues I brought up, you give the impression that you have no answer, either because you don’t understand your argument as well as you think, or because you don’t want to admit that you are wrong. You need to wake up.