I'm about 60% and this took me 4 weeks. After practicing, I've come to the conclusion that it all depends on 2 factors:
1)what you want to learn
2) what your goal is
I'm about 60% and this took me 4 weeks. After practicing, I've come to the conclusion that it all depends on 2 factors:
1)what you want to learn
2) what your goal is