To piggy back on the ideas here, don't be afraid to clone something that already exists. The important part here isn't to make a company that will make money,

To piggy back on the ideas here, don't be afraid to clone something that already exists. The important part here isn't to make a company that will make money, it's to learn by doing, so don't stress over the idea too much. I'd say add a small niche to it so it's easier to give it a unique personality. For example, a real time chat application, so you could just clone the basics of Discord, but do Discord for poker players or something.