A GPA above 3.5 is more competitive, but people with lower GPAs can still be admitted. If you are still taking prereqs, try to get the best grades you can to boost your science GPA and last 45 credit hours, because schools look at those as well as your cumulative GPA. There are some schools that are more holistic and don't focus on GPA as much, you just have to choose the schools you apply to carefully.