One word. Practice.
Talent can be measured by the rate in which you improve when you apply yourself to your craft. It is, after all, one's natural inclination to an action.
The number 1 reason you suck at something 9.9/10 times is because you don't practice enough. The second reason is that you don't practice efficiently enough.
Therefore, if talent growth is directly related to practice, then maximum talent potential reveals itself once maximum practice occurs.
In other words? If you haven't done the above things, you truly have no idea what your actual potential is. You've only scraped the surface of what you're capable of.
Since you don't know what your maximum potential is, you can't imagine it. Your true maximum potential is actually beyond your IMAGINED maximum potential.
So, aren't you curious? What is your true power? There is only way to find out, only one way to bring it out.
Practice. Hard work.