to change your opinion or the way you feel about something
cambiar de opinión
"She was going to move abroad, but she had a change of heart."
"Ella iba a mudarse al extranjero, pero cambió de opinión."
to gain knowledge through practical experience
to reduce the level or amount of something
people with power or influence who can help you
to make others happy with your positivity
without any logical reason to doubt; with full certainty
Very quickly, almost instantaneously.