you need to graduate. don’t make waves.

Religion has spoken to a hushed audititorium for eons with a mic, even now they hold sway in society.
As a non believer you also have a right to exist and not believe.

I suggest you try a different tack with your classmates.
Try SE

keep plugging away. as they get older some of what you say now may resonate

That can't be easy. I have found that asking questions, especially why questions can lead down more constructive paths than arguing. If they see you as questioning rather than opposition, conversation can often be far more civil. Especially if you have leading questions.

Also, one thing I've found to be very helpful in these kinds of conversations is considering their view. For a really well explained explanation, I suggest this video:

You're so close. It sucks now, but you have a couple months left and then you don't have to worry about it ever again.

I rarely pushed the issue in that identical situation and came through it a stronger person having witnessed the delusion of Belief...hang in there.

Hang in there. You will free of the dogma soon.