Shall I retake a 1540 SAT? I also have an unweighted GPA of 3.91.
I’m not sure if my academics are good enough for a “good” university (ivy-level, or schools of that calibre)
What do you guys think?
No! That SAT is most definitely ivy-level, top-25, etc. Your GPA is great as well.
Your admissions chances will vary based off of your extracurriculars and essays- Your stats are just fine.
A 1,540 puts you just about in the middle, maybe a notch above the middle, of the 25-75% percentile Common Data Sets that the top schools publish. I’m really not sure what another 20-40 points will get you in terms of admission.
That is equivalent to ACT 34 which is above admission average for most top schools. You don’t need to retake for admission at any school. If you want good merit scholarship from top public colleges, then you may need a higher score.