You're not the only one. I too am also doing somewhat of a similar migration with similar staffing and not enough time, and the project managers and product own

You're not the only one. I too am also doing somewhat of a similar migration with similar staffing and not enough time, and the project managers and product owners are more concerned ed about the dates they committed to than what us devs need to make it all possible. The last site works, but it has dragons and monsters under the hood.these things take time, but because us devs are not able to clearly estimate.the end of the line, we stick with the too tight time frames...