Traditional budgeting advice assumes a steady paycheck, which does not reflect how many people actually get paid. If your income varies, a percentage-based approach usually works better than fixed dollar amounts.
Start by identifying your lowest realistic monthly income from the past year. Build your essential budget, housing, utilities, food, minimum debt payments, around that baseline number so you are covered even in a slow month.
In higher-earning months, direct the extra income toward savings, irregular expenses, or debt payoff rather than lifestyle upgrades. This keeps your baseline lifestyle stable while still making progress when money is flowing in.
This is general education, not personalized financial advice.