Writing Habit Builder

You want to write, you mean to write, and somehow the page stays blank week after week. Tell it your project, the time you have, when in the day it sits and what usually stops you, and it designs a routine around that slot with a start ritual that beats resistance and a daily target so small you feel daft skipping it.

I want to build a consistent writing habit but I keep failing to do it despite wanting to.

What I want to write: {WRITING_PROJECT}
Time available per day: {AVAILABLE_TIME}
When in the day I have that time: {TIME_OF_DAY}
What usually stops me: {MAIN_OBSTACLE}

Design a writing routine built around {AVAILABLE_TIME} per day. Include a start ritual that bypasses resistance, a target that is embarrassingly achievable on bad days, and a slightly more ambitious target for good days. Tell me the one rule that separates writers who maintain a habit from those who do not.