Firstly, it's only one SAC so I don't think it would have that much of a significant impact on your scores especially considering how the rest of the students in your class also got less than 50%.
From the information given, it doesn't sound like you necessarily performed that bad, relatively. Remember your SAC your raw score does not matter, your ranking in your cohort does.
Also, don't give up even if you performed below average. You are not screwed this early in the game. This is literally only one SAC, just focus on your mistakes and work on improving 🙂
