There's likely a very succinct answer to the problem you've got - so I'm going to fail at writing that and do it the long way round. So without any further ado, here's the two things you've got to mentally shift in order to get yourself in gear.
Perfectionism and over-research are simply delay tactics your brain has developed for you so that you don't have to publish. You need to work out why. Whilst you ponder that allow yourself ONE writing session to bash out everything you want from an article - let it flow. Then the next day (and I do mean the next day) allow yourself a ONE HOUR editing session. After that, publish it. Spoiler, you're going to hate that, but fuck it... do it anyway, blame me if the world ends.
It won't be perfect, it can't be perfect. Perfect isn't a thing. Some of my best performing pieces were written very quickly and edited very minimally. This one being a fairly good example. https://medium.com/lucid-nightmare/five-people-i-want-cancelled-right-this-second-47afb0b5dbae
So do that, because that's all self-discipline and once you've done it a few times and got over your squeamish feelings about not being the sort of writer people want to read you'll be banging the pieces out at a reasonable churn rate. Once they're out, forget about them - respond to comments but don't worry about what they're doing - just write the next one.
The second thing you have to mentally shift is to understand that all articles are stories - that's pretty much it. Go and look at Umair's work, at Wildfire's work, at Tim Wise and whoever you want really - the best articles are structured like stories. Beginning, rising action, climax, falling action, conclusion. Once you've internalised the structure of storytelling, you'll know where your articles require editing. I haven't read any of your drafts, but I bet they meander in the middle. Over research tends to generate a slog of story because there's too much going on. Cut the fat. If you aren't sure where the fat is, look for where the story starts to sag. Cut there.
Practice by writing shorter articles. Write simple articles about stories that already exist. Crime is a great tag to practice this skill. As is History. Don't worry about what to write, just concentrate on creating a compelling story that's around 5-7 minutes long. Once you do this say 30 or 40 times you'll start to have a voice emerge in your work. Mine turned out to be snarky, sarcastic and faux-bitter in my articles and much nicer, more level and approachable in my comments. Now I'm no longer in my head and my work lands on the page with very little in the way of re-writing. It gets edited (and occasionally rejected) by the Significant Other Penguin - but for the most part, it's a hassle free process.
If you're interested and want to see the difference, then go to this story. https://medium.com/lucid-nightmare/nazis-in-our-classes-the-50-year-old-lesson-about-fascism-still-terrifying-us-today-839c3222dc23 - it's still my most successful story on Medium, but only because it's the oldest and is about three years old. It doesn't have much of the Penguin in it, because it was written with heavy research and edited to death. Then it was edited by Medium too. This article got lucky and that's because it's already a story. I just had to cut the fat from the narrative.
Compare and contrast with this article https://medium.com/lucid-nightmare/5-ways-to-spot-if-youre-super-woke-3a20c76736ab from earlier this year. The two look as though they've been written by different writers. In a way they have, but you don't get to write this second article, without going through a bunch of those first ones. And that first article is the one hit out of a collection of about a hundred others which sank without a trace.
I write because I love writing and that's what I'd urge you to find in your process too. Keep at it. Go bang out an article. Publish it after an hour of editing tomorrow- and tag me in it. You got this, I believe in you. :o)
