NIH Internships

I am a pre-med student with a 3.4 GPA. I recently applied to one of the NIH summer internship programs and just wanted more information about how difficult it is getting in to one of them?

Last year they accepted about 11%, so it’s very competitive. By the way theres a thread for the NIH internship here: http://talk.collegeconfidential.com/internships-careers-employment/1716217-nih-sip-thread-p1.html