Advance Preparation 7. Security Measures
This is the security from hardware to software. At the ending part, there are the countermeasures against hackers. Please refer to it.
Advance Preparation
Advance Preparation 
Advance Preparation 6. Points on the contract
At the contract with web hosting service, it's no problem following to the navigation. But I'll tell you the points on the contract as a person with experience.
Advance Preparation 5. Select your Hosting Service
Select a web hosting service for WordPress. If you don't mind the cost, WordPress.com is supposed the best, but there are a lot of recommendable web hosting services.
Advance Preparation 4. Installing Mobile apps
Install the mobile app for WordPress and PayPal the online payment service. Both should be installed before making a homepage.
Advance Preparation 3. Installing Authenticator
Install Google Authenticator to your mobile for 2FA. It can use Microsoft Authenticator, however, to consider about connection to Google account, it's much better to use Google Authenticator.
Advance Preparation 2. Security of Account
Configure 2FA to Google account. It elevates the security higher. In this case, configure Google Prompt, which is easy to use. It doesn't need to verify again after configuring it,
Advance Preparation 1. Creating Google Account
Create Google account first. It is that many people created it unconsciously by using Google account.