First design what the website will look like and function. This part is relatively easy for non-techs. You can do an outline of the site on paper. Things like number of pages, content for each page, layout, colors, desired function. Create as much as you can on paper. You should be able to show it to someone and that person should be able to understand how the site will work from looking at the pages you put together.
Get your ideas from existing pages in the web. Don't try to create your own. Copy as much as possible from the web for your design.
Once you have done as much as possible on paper. Sign up on to one of the page builder sites such as square space or wix. Set up your design there. They also have the ability to create interactive pages so go thru the tutorial until you can create the interaction you want.
A big advantage of having a project you want to create is that you can hunt for the different tutorials on the web that will show you how to get what you need done. There are tons of tutorials on the web. Take advantage of the situation and use them.
There's going to be a steep learning curb for you but it's very doable.
You can't be an expert overnight but if you do it a bit at a time you can achieve a lot. Make it a hobby where you learn a little bit at a time.