[stopachka]

Empathize with you, and from the writing I am sensing the stress you are in.

One thought that may help:

As an engineer, your job is to communicate risks. You can’t control whether this becomes impossible, but you can control how you work on it and how you communicate.

One way to do this is to keep an up to date design document with progress and risks. Looks like there are some issues that are worrying you. If mot already would write it out and get thoughts from stakeholders.

Rooting for you!