There's 2 type of people in the world. Those who says "What doesn't kill you make you stronger", and those who almost died before. The scars, the fear, the new limits, they pile up and form a wall before you, even before you have to get back to the ring. You can't punch your way through everything sadly, new challenges requires new techniques. You may not get out unscathed, but you still do grow stronger, like they say. They might not know what they're talking about, but at least, somehow, they're right.