I'm not sure I understand your question but I'm just going to go ahead and answer what I can interpret.

First off, all big things start small. It's all about intentionality,

If you're building a company, it has to have products or services that solve a problem. Beyond that, you have to find a way to monetize it. There are different monetization strategies available depending on what you're building.

To get people to buy it you have to market/sell it. Alongside this, you need to hire good people and build the right systems that ensure they're able to do their best work.

Depending on the type of company you're building, you'll face a couple of challenges like regulatory pushback, infrastructural limitations and keeping the lights on.

Generally, constant experimentation along the way and focus are valuable traits to have.