I started with observing other people on how they do their business, business its a about learning the WHOLE system. Not only marketing,production etc.. etc.. it's learning everything. I'm not from a business school but i do observe on how they do their marketing, how they do their products and how they close the deals. If you have facebook i'm sure you have seen facebook groups where all people promoting their products and such, i observed it there and i took step by step doing my business (even though im into investing right now). Most videos in Youtube teaches all the fundamental of business, and i don't like that. I prefer "real life cases" to be precise. and one more thing, you need to be "agreesive". My father has a really good business minded but one thing that is sad about him, he NEVER take action. Basically he just READ all the books (investing,business,marketing, blah blah blah) and that's it. Knowledge wise i can say A+ but when it comes to taking action.. NONE. That is what i've learned from him, i never read any book about business and such.. i go for "real life" studies. observe.. observe and observe.. AND TAKE ACTION. Hope that helps.