Start where the sentence catches.
When you know there is something to say, but not yet how to say it, take a quiet minute here.
You
I'm not angry. I just don't want this to keep happening.
Milila
Then perhaps the beginning isn't the problem. It's what you need to be different.
You
I want them to understand I still care.
Milila
Keep that sentence. It changes how the rest should sound.
The words still leave as yours.
Talk helps you notice what you mean before you return to the person. It is a place to reflect, not a person speaking in your place.
Take a minute before you send it.
You do not need the perfect opening. Bring the thought you already have.