“You held me down, but I got up
Get ready cause I’ve had enough”

Katy Perry – Roar Lyrics on LyricsMode
EXPLANATION
Don't let bullies push you around they don't run your life you do you should take a stand.
EXPLANATION
She has had enough of the bullying around done by someone so she has fought back.
EXPLANATION
You try your very best to break me but it's not gonna work. You better watch your back, I'm coming to get you. What goes around come around. I had enough of your "talk" , I won't back down this time. I'm through with you. You going to get what you deserve.better watch what you say and do because you will never know when or where I can get you.you thought I was naive enough to believe in your false apologies and fake emotion. No honey, it's over, I know what you planning. You should be worry. Take cover. I'm not what you think I am,much stronger and very dangerous if you're decided to mess with me.
EXPLANATION
She's saying that it's enough of what that person has done she is ready to get revenge back and get courage.
EXPLANATION
She is done being told what to do and she wont take it anymore.
EXPLANATION
People were not encouraging Katy but she had enough of that so she is going to stand up for she wont care what other people think of herself.