Just ORD-ed, how many years of reservist do I actually have and what should I expect?

Congrats on ORD. Straight answer: after your full-time NS you serve as an Operationally Ready NSman for a number of years, during which you have a set number of cycles, typically involving in-camp trainings, though the exact count and whether a given year is High-Key or Low-Key varies by your vocation and unit. High-Key years are the longer, more intensive in-camps, Low-Key years are shorter, sometimes just admin or a brief activity. Over the years the intensity generally tapers, and once you've completed your cycles you're done with active reservist and eventually reach the statutory age where NS liability ends. Practical stuff that actually matters: keep your IPPT current every year, clearing it early each window saves you RT hassle, keep your contact and employer details updated on the NS portal, and plan leave around your in-camp notifications since employers must release you. Make-up pay covers income differences for those who need it. It's honestly not bad once you accept it, most guys treat ICT as a slightly annoying but bonding reunion with the boys. Ord loyal, brother.