It's also about how you practice. It's true that not everyone can get to any level at any skill. But it's also true we underestimate our abilities and potential almost universally. That said where you invest your limited time and what you enjoy and want to work on is totally up to you. But often "I can't do it" is just an excuse or a mindset or not having found the workaround or the right approach (where a teacher can sometimes help).