Say what you'd most like to hear...
Sometimes we just need to hear a certain phrase for us to feel comforted and happy.
Say something to yourself that you'd most like to hear right now. 

You're not a disappointment to me. We don't hate you, we just want you to try a little harder; and if you're struggling we will help you.
there's hope Improvemnt and I have more.strength
You are stronger than anyone else knows or can see. They don't see what you go through, but if they could they would know that you are stronger than they could ever be. Be proud of that.
I'd like to hear that I'm not as worthless as everyone perceives me to be.
@faithfulPineapple6256 You aren't worthless at all, honey. You're a beautiful human being, and anybody who thinks you're worthless-- Well, the opinions of idiots don't matter much to me, how 'bout you? ;p I think that you have amazing things to give to the world.
"I appreciate everything you do for me" or "You are such a wonderful person" Being complimented on your physical features gets old and can be fake. It's more uplifting to hear a genuine compliment about who you are as a person ...
Hararararararara
It will be okay xxx
"Great. You can start [working] tomorow!"
I can't stress enough how much I need a job.
There are causes and conditions behind everything that are out of anyone's control. Accepting this can bring us to peace with ourselves and others. Everything is impermanent.