Sorry i am not an expert but what i know is this: Guts is most important thing, Guts what sets us away from the rest we don't play or should i say battle for money or fame Practice as hard as you can Play your position right ! be aware all the time, an offload could come at any given moment improve your skills (to avoid knock on) &remember this not soccer your not on your own it's the whole 15 that makes a win not individuals

eat good go to the gym watch matches and lots of it watch youtube videos about rugby skills (ruck, tackles, passes ......... etc ) read about the laws of rugby AND FINALLY be a rugby player,, dont fight with others in life a true rugby players hurts his opponent in a match,, and after the match he shakes ur hand respect is the most important thing in rugby