Just want to jump in here, to see if I can help out at all—are you presented with the same screen shown below when loading up the project?
If you’re seeing something different (or nothing at all), you can try loading the site in Incognito mode with all of your extensions off or try another browser to see if that’s the issue.
If you see what I included above, and you’re not in “preview mode” (the eye icon in the upper left should be grey, not blue) then is there something in particular you’re looking to do that you’re having trouble with?
I’m happy to walk you through any issues or record a short video explaining how to accomplish something. Alternatively, as @sarahfrison mentioned, there are tons of great resources available in the Webflow University that can help out—all totally free.