Reporting part-time earnings while on benefits after 15 years as a school bus driver

My hours change every week at my new part-time job and I am afraid of reporting wrongly. I have read a lot of threads here and could not find my exact situation. Sometimes my paycheck is late by a week. Who can I ask without risking my claim?

Report honestly and keep your stubs. An honest small error is much easier to fix than a missing report.