What features do I need to move the domain from Wordpress to Squarespace and start selling online

Today I have a website on WordPress: www.ogonoron.com

I want to build a new website (I've already started) on Squarespace and also move my domain and personal email address to Squarespace.  

I now pay around €30/month for:

• WordPress.com Personal 4€/month 
• Google Workspace Enterprise Standard 17.30€/month
• Akismet 9€/month 

If I delete my WordPress site and make a web on Squarespace where I can sell online products like stock photos for example, what do I need more than this?

Do I need anything beyond the following for effective marketing, SEO, Google analytics, etc?

• Squarespace Business Plan €204/year 
• Google Business Starter € 5,20/month.

I see the first year as a test so I don't want to spend more than necessary.

I appreciate it if you can advise me

/MickeMac