Dont sweat it.
If you where sitting right next to me I would probably care less about your situation. Its just part of learning.
I've been handed my butt far more than once and its just part of the learning experience.
I recall having a calculus class that had absolutely no practical purpose for my degree and real life applications. I failed every test every time.
However the tests where always lecture hall style with 300 - 400 other students. I would pick an out of the way place to sit in the back and then basically waist time until the point that had I actually been very good at that sort of stuff I should likely be finishing early.
I would then confidently walk down the isle with a big grin and the overall appearance that I thought that it was easy and that I also had done well. I would turn in my test and stroll out the lecture hall with a big grin and give everyone else a quick look back and smile confidently to top it off!
Sure I had a 100% fail but it flustered the overachievers and messed with the A++ brown nosers who viciously compete to be the first done and the best one the test so bad it was worth it!
To this day there are 300 - 400 people who think I am very good at calculus and 1 professor and 4 teaching assistants plus myself who know when it comes to calculus I am dumber than dirt and dont care either.
Learn to accept failure with a big grin and a confident attitude. It just makes everything tougher for everyone else who doesn't!