There seems to be a prevailing belief that persistence is what makes people successful.
While persistence, determination, dedication etc are all important traits, the truth is talent matters as well.
I could practice a musical instrument everyday for the next 5 years and while I might get better, I would never be good because deep down, I have no musical ability and am tone deaf.
Hard work, persistence, determination are all important but to be great at something you need more, talent does really matter.
Have a great day!