I built this alongside a full-time teaching job too.
I didn't leave teaching and hope SMM would work. I built the client base alongside my full-time job first. Before I left teaching in Dubai, SMM had grown to multiple clients and around AED 30,000 a month, and I later went on to build marketing agencies across the UK and UAE.
The Blueprint is the system I wish I'd had at the beginning: nine years of marketing experience combined with the exact commercial side most SMM courses leave out, finding clients, pricing, pitching and actually turning the skill into a business.