DHT cleansing shampoos

[25 going on 65]

I wouldn't expect it to be devastating if you missed a day or two. But in general I'd try to avoid skipping days unless it's really necessary, especially when it comes to minoxidil (if it's temporary as part of a "tapering-up" period, that's fine)
Keto shampoo you'd only use 1 or 2 times weekly, so it's pretty easy to get all the doses even if you're off by a day or two.

And combining treatments does help. Fin and keto have worked well for me, and if I added minox I'd probably have more growth as well.
I don't know much about emu oil. I wouldn't expect much from it, but it shouldn't hurt either.