how do you pass P-company

Firstly you need to put 100% effort into every event. It is a mental test as well as a physical one. You'll do P Company in week 20 of depot. Up until that point you will do plenty of Plenty of Physical Training in order to prepare you for P Company. You need to put in 100% into all the training you do leading up to P Company. Simply turning up and putting in the effort on the day without having had the drive to put in the effort leading up to P Company will not do. Furthermore the fitter you are when you turn up to depot the better place you will be in to start