migrated my site from version 7.0 to version 7.1

Hello, I have already migrated my site "antonovart.com" from version 7.0 to version 7.1, but I am not satisfied with the result, and I want to start by creating a new, fresh site with a fresh template from 7.1 on my own account. 
My old site is under construction, and it looks like my account gives me the opportunity to start creating a new site. What pitfalls can I expect? If I start a new site on my own account without creating a new account and then just transfer my domain "antonovart.com" to the new site? What about those unfortunate 14 days? Do I need them? I'm already paying for my time.

Thanks for the clear, timely response!
What does SOS Support mean, and where to look for it?

You can find Squarespace Support here:

https://support.squarespace.com/hc/en-us/requests/new#choose-topic

Thanks again!
 I've been digging around this weekend in the remains of the site that I managed to migrate from 7.0 to 7.1 version and I'm starting to get something. 
I have a question.  The thing is that I decided to create a new site from scratch, and not to restore the old one, because I heard somewhere that the site created on the basis of 7.0 with the transfer to 7.1, using this new option to upgrade Squarespace, will not have a full-fledged template from 7.1!
 Please Confirm or Disprove this opinion?

14 hours ago, artpapa said:

full-fledged template from 7.1

I'm not sure what this means. Squarespace 7.1 does not have templates in the traditional sense. When you start a new website on Squarespace 7.1 you get to pick a starting point with pre-designed content and pre-selected fonts and colours, but that's all you get, the functionality of every template is identical, and that's also true of the upgrade process. When you upgrade you won't get to pick one of these starting points, but it will try to pull the fonts and colours and content from your old site instead. This is no real loss unless you want the exact design aesthetic of the starting point and plan to do nothing more than swap out the demo content for your own. The template pages/sections are generally available when adding a new page/section, and you can pick a font pack or colour scheme in the styles menu.

Thank you, I probably did not exactly express my doubts, but your explanation pushed me to a more precise expression: from version 7.0 I brought my content and now I do not have the old template, but I can use all the goodies, that is, "a single template version 7.1"? 
But the thing is that it seems to me that here I have not everything works as in the instructions, and somehow messy, perhaps my previous mistakes and inaccuracies exposed here. And so it seems to me that it is better to start from 0?