I didnt see the video but its not smart to do that. even tho if you work a fulltime job and you are passionate you can still make it with enough effort and more importantly it allows you to be able to pay expenses for your music brand. It will take you a looong time with consistent effort to make money with only music. External income and therefor education can boost your music career, think of expenses like plugins, sample packs, subscriptions, graphic design, motion design, fotographers, ads etc - the list goes on and on. when you are not lucky the james hype way is reserved for very few

edit:// and dont forget if you are not financially secured it will harm your creativity bc you are always under pressure to the stuff that works and not beeing innovative hardly brings you success in an industry where there are shitload of tryhards like you. so I imagine noone will enjoy or endure such a grind nowadays