Whew, Shannon - I FEEL YOU. ADHD is one hell of a ride, especially for writers. Especially for WOMEN writers with an adult diagnosis. I am so proud of both of us for what we've accomplished in a field that depends so deeply on planning, routine, recall, and prioritization. It's amazing that either of us have "made it" the way we have. I wanted to start there.
Now, to share some lessons from the perspective of an ADHD female writer, gained over the past few years since diagnosis...
It sounds very much like you are neck-deep in what I call the ADHD process of being "overwhelmed by overwhelm." This is unfortunately very common, especially when you're newly diagnosed, newly medicated, and are just learning to label your experiences with the disorder. So I think your first step has to be labeling the heinous, exhausting background "static" of overwhelm for what it is, which at it's core is the sensation of your brain trying to grasp at a bevy of disparate and very slippery mental stimuli at the same time. Labeling overwhelm AS overwhelm is actually quite powerful.
After that I suggest tackling the whole "build a website" mega task and unveiling it for what it is: lots of smaller tasks your brain has shoved into one very overwhelming, huge box labeled "build that goddamn website OR FAIL FOREVER." Our ADHD brains love to do shit like this. It's rude, right?
Task breakdown is CHALLENGING for us, to put it lightly, and usually it takes a few tries before you can sit down with a major one like this and label its components in a helpful way. So it's ok if you try to break the "build website" big-task into smaller ones but fail a couple times and have to come back to it later.
Here's how I might do it if I were you, if that helps-
subtask1: spend 30 mins reading/watching the highest rated Wordpress tutorials FOR BEGINNERS
subtask2: make Wordpress account and save username and password in the notes of your phone
subtask3: enter domain information as prompted by Wordpress and purchase or transfer the name through their website...
Wordpress allows you to use premade site templates to build out your website, and I DO NOT suggest using a third party host or even farting in their direction until you've already set that site up through Wordpress itself & used a template. Idk if this helps, but I just wanted you to know that it'll get easier, mentally, and this is a totally normal aspect of coming to terms and coping with an ADHD diagnosis!