Another day, and another thread about fitness tests. It still amazes me that people who want to join only concern themselves with how many situps they can do, and exactly how far down they have to go during pressups.
I would recommend you ignore the fitness stuff. Just be as fit as you reasonably can be, and direct your attention much more towards the interview, the aptitude tests, and the command tasks. There's a lot more to being a pilot, and to joining as one, than situps!