How to test if your marketing is working

If I am missing, If I stop doing what i am doing on all the channels that i was on, would anyone miss me? would people ask why you weren’t there when you should? 

Asking this question forces your mind to focus on what really matters, 

they wont miss me, why?

yes they will, which part?

Then you start filtering out all the noise from what is the core value that your brand is delivering on these platforms.