Hey Luisa, I would first have a look around at what already exists in your industry and how you could differentiate yourself from it. For example, two of my favorite cooking channels on YouTube are Bon Appetit and Binging with Babish. Both of these live off of the personality of their presenters, together with a wide knowledge of food. See what new thing you could bring to the table and make decisions from there. Good luck!
Like anything else in this world, you'll either need a lot of time or a lot of money. If you have both, then clearly, you're ahead of the game. But most people have more of the former rather than the latter. But considering that time is finite and we only have a certain amount of it, using your time wisely and managing your time properly is crucial to ensure your success.
It is not difficult to start a business. It is all about hiring the right people or having enough knowledge and connections within a specific industry. You should do some in depth research before you decide to settle on a specific niche for your business. webdevelopmentseo.com is the most reliable company to develope your online business website at very reasonable prices, they also do optimization for your website / online business.