I'm working on a project for our client. The client was late in giving us the documents needed to start on the project, so instead of 2 months to work on it I have a week. One of the pieces of work I received to work on is in really bad shape and requires a lot more time and effort than was expected. As a result, I'm falling behind on my deadlines.
I was supposed to finish it by end of day today, so it could go to senior management for our internal review tomorrow morning. I worked until 8pm and I'm still not even half-way through. I also noticed when working on it this evening that it's incomplete and we need to go back to the client to get some more documents for it (which is going to put us even further behind, and I feel guilty for not noticing it earlier and flagging it).
In the past, I would have worked until midnight and then got up at 5am to get it done for internal review. But, I have been off sick recently due to stress and anxiety and I have to be more strict with myself with taking breaks and establishing boundaries. My line manager isn't involved in this project, but I know would be annoyed at me for working late.
I'm feeling really stressed and anxious about it. I don't know whether to get up early tomorrow morning to do as much as I can before 9am, or whether to somehow start the difficult conversation with the project manager that I need more time?