Dynamic data: Intro to the Webflow CMS | Webflow University - the Webflow CMS allows you to create a database of information, which you can dynamically link to/pull information from and present it in your site.
VW / VH / % / px : can all be entered in margin, padding or width or height here:
I agree with @CTucker1327 - learn about flexbox which is great for dealing with things on different breakpoints, also follow some full site tutorials, there is a learning curve, but it is worth it. To solve your problems you may need to rebuild your site - but do so with some of this new found knowledge.
Also, why not start with a free template, and change around the settings to see how they were built, or if you find a template or showcased site https://webflow.com/discover/popular#recent that you like, view the preview link to see how it was made. Search the university.webflow.com and also the forum search, and you will often find similar issues solved/explained.
