who says you're not perfect?

I know it sounds waaay cheesy but
tonight at the gym, I had already done an hour of cardio
and I was "punishing" myself for having pizza tonight
I was staring at the other girls, wishing I looked like them
and being really mean to myself saying things like
"you'd look like them if you worked out harder.." "maybe you should eat better" "you're never going to look like that."
&& Selena Gomez came on...
It was her song called "who says"
It basically states that you're already "perfect" and not to listen to what others )which I assume includes yourself) say.

So I just wanted to tell you, quit beating yourself up,
quit longing to look like someone else
You are doing a great job,
you are already perfect
I am so proud of you and your efforts in becoming healthy.

I'm not saying, eat all the crap you want
or to stop working out
I'm saying don't beat yourself up on this journey
and realize that even if you didn't lose one pound
you are doing such a great job
you are beautiful/handsome
by trying to change your life for the better.

Feel free to add me if people aren't telling you how great you are often enough.