It's your first test...chiiiillll
I think majority of us have been there. What has helped me in the past w/ situations like this is:
1) Go ahead & cry &/or vent if you have to but as soon as you're done,
2) Get on the ball & figure out what helps you to RETAIN & UNDERSTAND (emphasis on the UNDERSTAND part b/c you're not going to remember EVERYTHING).
3) One thing about studying and test-taking strategies, what works for someone else may not work for you but the key is,
4) Figuring out what works for you (which is trial & error) but it's all about improving your habits & skills each time.
5) Scan through the chapters before class, focusing on charts, figures, bolded words, etc.
6) What has helped me is instead of procrastination (which I can be a pro at doing), review the notes you wrote during lecture and compare/transfer/highlight/underline that information in your textbook ASAP after lecture. It helps me to retain the info a little more
7) Another thing, some instructors rely on their PowerPoints to make up the exam questions. Others rely on the textbook, study guide that came w/ the book, etc. The key here is figuring out which instructor uses what during that class/semester.
8) Know that you don't have to spend a WHOLE lot of $ to pass your lectures. I made this mistake my 1st semester reading so many threads about how you should buy this rolling book bag and this A&P coloring book lol. I've never used that book and haven't used the rolling book bag since the 1st semester.
9) Study groups/partners may help you to bounce ideas off others and/or to hear of other methods of understanding certain subjects (I hope that makes sense).
10) Sometimes "teaching" your family, friends, &/or significant other the info will help you to understand &/or retain the info.
Note: Sometimes you'll find that going strictly by the book or how a instructor relays the info, doesn't help. I'm not saying cut corners. I'm saying you may have to translate the info in way that you can understand or remember. Example: turning Lab values into rap lyrics, using acronyms to remember nursing interventions, or using keywords to remember medications, s/e, and implications r/t that med, etc.
Lastly, relax and take time out to enjoy yourself every now & then. It is truly a journey! Good luck!