I see that you managed to work on squarespace. But to follow my layout, I suggest you to duplicate a page I did, and just replace the information. That way you will keep padding,spacing, font styles the same throughout the website.
To duplicate a page you need to go to PAGES, hover the mouse to the page you’'d like to duplicate. When you hover the mouse you will see an ICON tool. Click on it and a box will pop. Scroll down on that box and you will see a DUPLICATE button. Click on it and a copy page will appear on your pages left side menu.
There you can replace the title of the page/project and start editing to replace assets/info.
I will do one now so you can see how it works.