Because I do that as a self-employed person, I work from home online , I create marketing strategy courses (videos and ebooks) and I teach people how I make money online on my YouTube channels and on Instagram. I was a civil engineer before that but I quit my job because I didn't like it, so in my application I mentioned that I'm a civil engineer who quit his job and start working online, and I got success which I tried to share and teach on my vlogs/videos/courses to other people. I showed proofs of payment from ad networks of the last 2 years (from 2017 to 2019) and also some of feedbacks from my students (from USA and Europe) and I mentioned that I can help Canadian people just the way I helped those students from different countries. (In the schedule 6a: business immigrants - self-employed person -> page 2 of 4 -> 7- Your experience (federal business class applicants) )
Not to forget that I help startups and small companies with their marketing as a digital marketing consultant , I mentioned that too in my application that I can help small businesses online/offline.