Week 1: lock fixed commitments first
Immediately allocate fixed commitments and essentials before discretionary spending starts.
This protects the month from early leakage and avoids emergency adjustments later.
Week 2: track pressure categories daily
For one week, monitor groceries, transport, and small discretionary purchases. This reveals where day-to-day drift is strongest.
Week 3 and 4: formalize caps and review rhythm
Set practical caps and do short weekly reviews. The objective is consistency, not perfection.