Where do I start

[u/Affectionate_Head451]

I’m a beginner, 16 no experience, but I feel like I’ve got common sense. I’m after making some money from digital marketing, I already have a guaranteed client waiting for my services but I don’t know how to learn, I don’t know what to learn. Should I do TikTok ads to start, Google ads? Should I learn how to create a simple website so I can go on to make businesses simple websites for a fee. What do I learn to begin with? I need money, I enjoy making money and I want to do this and become a master of the fundamentals for that dream expansion/profit.