It's good to read some motivation but still it depends on individual's capability and capacity to mitigate failure. As rightly said, failure is the key to success. No one can achieve success without facing failures. Failures are really tough and not only effect financially but also mentally.
A lot of people will treat failure as their end of an era but that is just a beginning to a better future. You should not be afraid of failure instead should be strong enough to face failures and overcome them.
Failure in trading can be devastating as we might even loose all of our savings. Coming back is a key to success not will more money but with knowledge and skills which were taught by failure in the first place.