Sometimes the first honest sentence is not a sentence at all. It is a shrug, a voice note, or "I do not know what is wrong with me, but something feels off."
You
I do not even know what the problem is.
Buddy
Then we can start without naming it. What is the shape of the feeling?
You
Everything feels too loud and I feel stupid for saying that.
Buddy
That is enough to begin. Loud, stupid-feeling, hard to name.
Naming it can come later.
A lot of people wait until they can explain themselves cleanly. Buddy is useful before that point, when the only real thing you have is a vague bad feeling and a need to put it somewhere.
No clean summary needed
You can begin with the confusing part instead of a polished explanation.
No pressure to be reasonable
The first draft can sound dramatic, contradictory, or small.
No audience to manage
You do not have to make the feeling easy for another person to receive.
Start where language breaks.
Send the half-sentence. Say the weird detail. Let Buddy help you stay with it long enough for words to show up.