I went in with a 4.0 GPA, and maintained it relatively easily until the last two semesters. Honestly, just focus on understanding the material, maintaining a good work-school-clinical-life balance, and getting the most out of clinical. I finished with a 3.8 and I am just fine with that. I could have had a 4.0 but at the end of the day, there are more important things than GPA. There are greater battles to fight and in the end, you are the only one who cares what your GPA is.