In my experience it takes one month of practice to get familiar with a new mindset and 3 months to totally intergrate it.
The best way to go faster is to practice a lot without being too attached to the immediate result.
It is a bit like going to the gym. You get results by building skills and power on that level.
If you focus on it and make it your top priority, you will have no problem being at 90% to 100% of your true potential.
Don’t ever let rejection, doubts or hesitations stop you, ok?
You now know what the target is and all it takes is focus, consistency and some determination