Consistency is definitely true you can't take two weeks off to recover. At most one week for each muscle group. Another thing, too many people get caught up in the hype of how much they can bench. Lifting isn't about being able to bench all this weight its about reps, plus theres so many more muscle groups beside chest. So focus on them as well. I advise you to do pull ups there clutch great for the back, which many people lack because their too focused on chest and abs and biceps.