can't do itA colloquial emphatic way to say that something is impossible, too difficult, or cannot be endured. หรอก adds emphasis, often reassuringly or in response to someone’s suggestion.
can’t handle itUsed after a verb to emphasize that something is impossible, too difficult, or beyond one's capacity; depending on context, it can mean “can’t do it,” “can’t handle it,” or “can’t afford it.” หรอก adds emphasis, often with a reassuring or matter-of-fact tone.