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. 

It's okay. I'm here. I won't judge you, and no matter what mistakes you made and will make I will be here. I won't leave. I love you. You deserve more than this. Please don't settle for anything less. Some times bad things happen to good people.
You deserve to be happy so don't let anyone make you forget that
You're better than you think you are!
I appreciate you. Don't beat yourself up about it. I like you the way you are, don't worry. I thought of you when I saw this.
You are enough. You may have all these worries, but you can do this. You are worthy of love, you aren't boring or annoying or weak or incapable. You are strong and you can do this. You're not alone. You are loved.
It's going to get better
Are you okay?
I'll always be there for you, no matter what happens.
It'll be okay, we love you and won't leave you
Please don't go, I want you to stay.