Even the “Legendary Ichijou Ryouma” gets down sometimes, you know. And anyone would be down after having their greatest dream totally crushed... It hurts. There were so many times I nearly quit show biz, after getting rejected over and over again.
and widen his experience 
of all sorts of things. 
und seine Erfahrung
 mit allen möglichen Dingen erweitert.
y expanda su experiencia en muchos ámbitos.
y expanda su experiencia en muchos ámbitos.
e tenha mais experiência
em várias áreas.