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."
someone suddenly understands something
to begin something well or positively
to achieve great success or gain a lot of money
to monitor someone or something closely
in a hidden or secret part of the internet used for illegal...
Have confidence; believe in your ability.