ARmy Rumour SErvice

Ive got around 4 months til my ball starts rolling with joining up and like most want to become suitably fit to make the journey less of a challenge than it is going to be physically and psychologically (joining as RMP).
Does anyone have any tips or training routines that helped them greatly?
already swimming weekly and going to be starting tai kickboxing soon next week, any ideas will be a great help.
thanks for your time peeps

fartlek training is great, using marker out on your runs such as benches, lamposts, signs, trees etc once you approach your marker sprint untill the next one or for 30 secs then return back to a normal running pace, jog, or walk untill the next marker and repeat how ever many times you can manage to keep up a good hard sprint. Ive had a few strange looks of people when ive been doing this on the street though! for a beginner can replace the sprint to a normal runnign pace then walking then running etc to break your self in if you havent being running regularly, but im sure you can figure what you can manage best.
psychologically when i get to a point where you feel you can go on like when your running and when its hurting i push harder to get through it, getting your self kinda angry works, when my legs feel like they wanna stop i end up kinda growling well shouting argghhh!! if you can imagine! I think when you start tai kickboxing youll be using you voice to channel the power i remember when i did karate we shouted hai!! on impact can be quite scarey if your sparring with some big gruff bloke shouting that in your face haha especially as a women!