Developing the idea
Give the character a problem they can react to in more than one way. Frustration can lead to humor, withdrawal, a practical request or a change of plans. Let personality determine that response instead of making every reply repeat the same mood.
Write an opening that invites a reply
The user should have room to listen, disagree or take the scene elsewhere. Keep fictional distress distinct from professional support or medical advice. A strong opening supplies enough context for a conversation without making the reader responsible for fixing the character.
Review the character as a whole
The portrait, background and greeting should support the same identity. Test whether a change of topic still produces a recognizable voice. Keep characters original, clearly adult and within the community rules.
This is a dated theme from the contest collection, not a notice that submissions are currently open. An event's entry conditions and deadline apply separately from using the theme as a writing exercise.