An honest progression.
MONTH ONE
Register the domain, set up hosting and email
Build five pages: home, what you do, about, contact, privacy
Create a business profile Set up one payment method
MONTHS TWO TO THREE
Tell everyone who already knows you Get your first orders or enquiries Fix what those customers struggled with Ask every one for a review
MONTHS FOUR TO SIX
Add content answering the questions customers ask Improve the pages that produce enquiries Refine delivery based on what actually happened Set up backups properly
MONTHS SEVEN TO TWELVE
Add a second channel, done properly Review what is actually profitable Improve rather than expand
WHAT NOT TO DO IN THE FIRST YEAR
Build an elaborate site before knowing what sells Expand delivery areas you cannot serve Spend on advertising before the site converts Add features nobody asked for
THE PRINCIPLE
Establish that customers want what you sell, serve them well, then grow.
Most online businesses that fail did the reverse.