Do everything EyeDentist did.
I’m only partly exaggerating, because that wouldn’t be the worst idea in the world and the guy’s in phenomenal shape regardless of age.
Some more details about your current training would help give some context. This article from Paul Carter has some general tips to tweak your approach.
I would suggest, though, ditching the bodyfat scale as a means of measuring or even tracking progress. It’s just too finicky, especially a scale one that can give inconsistent readings 6 hours apart. Stick with weekly photos, measuring inches, bodyweight, and performance in the gym (strength and reps). Get an idea of your target image (what “below 10%” means to you) and work towards that.