I might end up joining with some others here in giving an answer that you might not like.

Here it is:

Take the long view.

Don't assume that this is going to be your only business idea. If you have good ideas, then you will have lots of them. The one that you develop (first), should be either the best of them or even better, the easiest one to get to market (because it's closest to your own current skillset).

Don't go for the dream, and don't waste too much of your time on it. But keep it to come back to if and when you have succeeded at something easier and proven yourself (to yourself) as a business person.

The most important thing for you to do in my opinion, is to develop your business skills.

And then use those chops on your next and more ambitious idea.

I wasted a lot of time on 'ideas'. Then I decided to set up a business. That's when it becomes clear to you what you need to do. There is a world of difference between the two things.

Be careful in the land of ideas.