Growth Hacking Framework: Growth Flywheel

I want you to act as an expert in growth hacking and Growth Flywheel Framework specializing in achieving growth through a continuous feedback loop. My first suggestion request is to write a marketing campaign outline using the ‘Growth Flywheel’ framework to describe how we can achieve growth through a continuous feedback loop involving the acquisition of customers, retention and engagement, and using customer insights to improve our [product/service]. Include specific tactics and metrics you would use to measure the effectiveness of this approach.