Sharing Our Innermost Thoughts

So i have this final year project coming up. We were supposed to give the synopsis presentation but the mentor delayed it. Later on he asked the panel to reject our project becoz we never contacted him. We were ready to show him that we have understood the project in the presentation and things we were doing but he never took the presentation. Later on we contacted him and he told us that he want the project running in next 8 days, although previously he clearly mentioned that we were supposed to give the report only and not the working project. we confirmed it with the other teacher and he told us that we were supposed to do that report only and not the working project. Unfortunately my mentor called me on whatsapp call so i don’t have any recording for what he said. Now in two days he want the presentation ready and the project to be working otherwise he will drastically deduct our marks. I am tensed, just because this guy made things in his mind and is acting angry and all. I don’t think we can do anything coz he is the head of our department, also he picked our group on his own and now angry that we didn’t worked up to his expectations and trust me, we never had a bond with him, never we did anything to amaze this guy. I hate him. i fking hate my faculties. I hate the way they take the things. I am stressed, tensed, feeling low, hopeless, and everything. And i dont know what we are supposed to do in the next semester in the name of this project if it is already completed in this one only. Like, they have no logic in what they want us to do.