Yeah that's a rough lesson learned. I mean who hasn't tried to save a buck on brake work and ended up regretting it pretty fast. Brake fluid eats through everything and the smell lingers for days no matter how much you wash. Honestly the proper tools pay for themselves after one messy job.

Good on you for trying that out, it takes guts to just let it rip like that. That "sounding like a robot" feedback stings but it's honestly helpful in the long run. You probably come across way more relaxed and real now, plus people can tell when you're genuinely hyped about a product. Hope your channel keeps growing from this.

You're not wrong that it sounds like overkill. But the thing is bare concrete is super porous and dusty. If you just roll epoxy on top without grinding, it'll peel up in a year. Seen it happen to a buddy of mine. He skipped the prep and now his floor looks like a map of cracks and bubbles. The acid etch stuff they sell at the store is okay but not as good as mechanical grinding. It opens up the pores way deeper so the epoxy actually locks in. Plus if you've got any old paint or oil stains, grinding is the only way to really get that stuff gone. Shortcuts on the prep just mean redoing the whole thing later.