It’s normal to feel frustrated, especially if you’re pushing yourself. If you’re feeling the kind of rage this guy is feeling, it might be you’re pushing yourself too hard. He did the right thing by taking a break. He’d be wise to take a good long look at exactly what was making him mad, and why. Finding a solution or at least some answers to those questions will go a long way toward a more patient practice session, resulting in more progress, and most importantly, more enjoyment. Good luck!