Supergirl, Season 1

Kara:
When I was helping people as Supergirl, I was... I was so happy. And now that the people don't want me to help them, I feel lost. And I'm in such a hurry to prove myself again, I'm making stupid mistakes, like today.

Barry:
This is going to sound ironic coming from me, but you need to slow down. Just keep doing your good work. Don't worry about the rest. The public will forgive you, I promise.

Kara:
How can you be so sure?

Barry:
'Cause the same thing happened to me.

Kara:
Really?

Barry:
Mm-hmm.

Kara:
So what finally fixed things?

Barry:
Time.