Beginner seeking advice

Hello, so i wanna start learning n8n, ive it self hosted and all but I don't know how through steps to master it, i am not sure about where to start, please guide me on how i should take it. Secondly, i want to make money through selling my consultance once i have good grasp over it. Where should i be seeking clients from (im based in Pakistan), should i start building a portfolio on Upwork too, will that help? or from Sk-ool communities, please somebody guide, thanks.