Praise be to Allah.
Mixed education brings a lot of bad consequences and many dangers. Hence a number of scholars have issued fatwas stating that it is haraam. We have stated that previously in the answers to questions no. 23407, 31210, 23393.
Undoubtedly working with men on the graduation project will involve more than just being with them in the classroom, because it will require a lot of mixing, meeting, contact and consultation. Hence the ruling on that is more strict. What you have mentioned is not an excuse to allow this work. The interest of protecting religious commitment takes precedence over all other interests.
So fear Allaah and seek His help and the means of steadfastness. Beware of mixing with men, and trust that Allaah is with the pious, the believers and those who do good, as He has told us.
For the rest of your studies, observe hijab, avoid men, persist in lowering your gaze and avoid adornment.
We ask Allaah to make you strong and to guide you to that which He loves and which pleases Him.
And Allaah knows best.