I dont think the TBomB II is necessary either or the -(made you some money there)
At your age your body is developing, and the main hormone responsible for that is testosterone- the hormone in the coming years will be going into overdrive right up to probably 21. During this time , you should be experiencing erections when you dont want them and wanting to f**k everything in sight.(within reason)Use this period wisely, eat well, train well and rest-get a good nights sleep(a time when the body repairs itself and builds muscle)
I also notice your doing 2 leg workouts in the week .Legs can take it out of you and in rugby training youre using your legs again Have they recovered enough?.
After going to the gym , your body is in a catabolic state and is craving for food (a protein /carb drink with added BCAA to start the building /repair process) so personally going to rugby training which i assume is aerobic combined with strength , is taking more out of your body .I suggest doing the rugby training separate to the gym
Have you added up the amount of protein /carbs you are taking -it doesnt look enough and also there are little essential fatty acids .Some are present in tuna but imo not enough.
Anyway just my view -good luck