how do I change template after I am have completed my website?

Site URL: https://strawberry-apple-thlx.squarespace.com

Hi, I have just finished creating my website but I just realised that in order to make it bilingual I would have to have index pages, which I don't have in the template I used. 

What should I do now? How can I change templates and does that mean starting over? 

thanks. 

Squarespace 7.1 is the newest version of Squarespace. It doesn't have 'index' pages (it has 'sections' instead) but you don't need these to build a bilingual site. Brad wrote a great guide about doing this here: https://www.bradgood.net/articles/multi-language-content-on-any-squarespace-template