I do not have a website
Answer four questions instead and it starts from those. You can point it at a site later.
Plenty of businesses do not have one, and it is not a problem. Say so when you are asked for an address and you get four questions instead: what you do, where you do it, who you do it for, and what you would like more of.
Short answers are fine. A line each is enough to start from, and the summary it writes back is yours to correct in the same way anybody else corrects theirs.
From there nothing is different. You read a week of posts, change what you want, and connect your accounts when you are ready.
If you get a website later, add the address and it reads that instead. Anything you told it by hand stays unless you take it out.
If this did not cover it, ask. A person reads it and answers the same working day.
Ask about this