Test taking tips to deal with anxiety

AP stats has been one of my hardest classes I’ve had to take in. I managed to have a 91 for most of the quarter until the last test where I could not finish it in time and got a 57. The grade for the quarter ended up being an 88 and my only hope for the class is getting a 91 or higher in the class. The way that assignments are graded makes tests be worth 65% of our grade meaning I need to get an 87% or higher on my test average and this has caused a lot of stress.

For the first test of the 2nd quarter, I did the optional homework, studied hard, understood the material well, got all the review problems right on the review worksheet our teacher gave to us, and rigorously looked over the notes. On test day I was excited to finally bring up my grade, but that excitement turned to anxiety. I blanked on a problem, missed some important details, and near the end, I froze in fear because I thought I wouldn’t finish again and would fail again. I did finish the test with about 10 minutes to spare, but I could not believe how badly I performed given how prepared I was. I got a 75, one of the worst scores I’ve gotten in the class.
I looked at the test today and found out my mistakes were simple and because I forgot how to do the problems in the middle of the test. I studied for hours for my test tomorrow, and I am excited because I think I understand the material well. I have to get an A because this quarter only has a few tests and I need to cancel out the 75 I made on the last test. I looked over the entire material, went over it privately with my teacher, and am planning to repeatedly do practice problems, but I’m scared I’ll fail it again. It’s rare for a person to get an A on a stats test, even rarer to get a 100 because a single wrong question subtracts 5% and a lot of the material is critical thinking that we haven’t fully gone over in class.

The pressure is on even higher for me this test because I’ll need to score higher, but I’m worried I’ll blank or freeze on the test again.