Should I take the SAT again or subject tests?

I already took the SAT twice, and my score was a 1480. I haven’t received my most recent score, which was from a makeup test in September. I don’t think that I did my best on that test. I was not able to study the weeks prior to the test because I was not home due to Harvey, and once school started, I was also very busy catching up on work. The test was also rescheduled on the day of my homecoming dance. I was planning on taking the SAT subject tests in October, but because I don’t think I did well on my SAT that I took this past weekend, I am debating if it is more beneficial for me to take the regular SAT one more time or take the subject tests. This is my last chance to take any of the tests, so I don’t want to make a bad decision. I am almost certain that I can do better on the regular SAT this time because I am a lot more prepared, and I have less distractions. My dream school is USC. I know they don’t require subject tests but I was wondering if it would it be better if I submitted my 1480 along with subject tests, or aimed for a higher score on the SAT and submitted that?