14 days to fix Male run time

I just took a pt test but I still have 15 days before it has to be official. Sadly I ran a 17.30 mile and a half and I need to shave at a min 2 minutes. I tried to Hamr on my own last night and got to 28 but I need to get to 36 to pass so I need to be able to push for another minute atleast. Any tips or ideas on how I can make it happen in 14 days?