Difficult training weeks are a part of the fitness process. You might curse your coach and everyone who’s ever loved them while you’re in the thick of hard a session, but we need those sessions to push ourselves forward. The rub is that we must be smart about how we approach them. But the good news is with a few tactics and skills, you can nail difficult training weeks and get the full benefit of all that sweat and strain. And all that cursing won’t be for nothin’.