You're bound to fail with your mindset. Practice first.
Before I do a presentation to a big client, I practice with small clients first to see all possible objections and scenarios and prepare for these. This does not include the several practice sets in the hotel room in front of a mirror that I do for several days.
Before a martial arts tournament, I spar with 25 to 50 guys first to know how to react and play the game with taller guys, smaller but faster guys, stronger guys, more skilled guys, and so on. This does not include the bag work, morning runs and other exercises.
Before I became good at sex, I practiced a lot first in sauna joints. I spent some one year's worth of salary to get good at penetration. This practice did not include oral sex. It's only for finding the g-spot and how to stimulate it optimally. I've also read a lot of books and scientific journals on sex.
No amount of reading or advice can help you if you DON'T practice.

_________________
Approach. Open. Escalate. Isolate
Here are my two essential rules on texting that will save you tons of time and money:
general-questions/topic137931.html