Advice On Where To Start Please!

Hi everyone. I'm thinking about starting a business from home, as I'm about to head into college. The thing is, I could use a bit of advice. See, I tried a few business models- mainly dropshipping and Print On Demand- and they didn't work out for me. I guess I had way too many expectations about what it takes vs. how much time I had back then. I also realize that I either didn't have a solid plan for them, or I picked the wrong niche. I want to try something different this time. I want to make sure that when I start, I start on good footing, because a good start will make a good business to the end.

One of my ideas involves selling spice mixes. I'm told I'm really good at that when I cook, to the point where people can easily recognize that I made this dish because of the spices I use. I think that would be a good idea. Now the issue is, I really don't know where to start, which is a problem obviously because without a good start, you can't have a good business.

So if anyone has some words on where to start, that would be wonderful for me. If you also have any words to say about what I'm thinking of doing right now, by all means, give it to me straight.