You shouldn’t focus on why you can’t do something, which is what most people do. You should focus on why perhaps you can, and be one of the exceptions.

Don’t be cocky. Don’t be flashy. There’s always someone better than you.

You have a viable business only if your product is either better or cheaper than the alternatives. If it’s not one or the other, you might make some money at first, but it’s not a sustainable business.