Review before you spend more.
A campaign review starts with a few clear questions. The aim is to understand what is happening and choose a useful next change.
Read the whole journey
Check who the campaign is intended for, what the message promises and where the visitor goes next. Make sure the page and follow-up still match that promise.
Leave a record of the decision
Write down what you noticed, what you will change and how you will review it. This small record becomes part of your team's playbook and helps the next person understand the reasoning.
Move at your own pace. You can come back to any lesson.