I appreciate your kind words very much!
While what you say is true and I definitely underestimated the amount of work, like said in the replies below, it's still my fault to convince myself that these ambitious release dates are something that I can meet.
But it is also true that, at the very start of making this update, I had a lot of worry thinking that it wasn't going to be enough content to really make an update. And now, it has only proven to be way too much at once for myself.
Like the others, thank you for your comment!