Thank you, Jade.
I think this book is going to be very interesting and helpfull.

I'm afraid a thick skin can only be gotten through living experiences and facing to things with the intention to learn and live them and don't letting the fear of failure stops you.

I'm recalling now my dad's solution. Lol! My dad's solution to get a thick skin.
He said one time I was very scared and sensible: women should go to the army.