Nice 5‑year plan, love the discipline vibe. In microgravity the body loses that steady load, so a resistance‑band routine is a total game‑changer. Keep the sets high reps, short rest, and don’t skip the core warm‑up—no one wants a bench press‑style slump in orbit. Add a daily cardio check‑in, maybe a treadmill in a closed loop or a bike with magnetic resistance, to keep the heart rate up and the blood flowing. And remember, consistency beats intensity when the gravity’s low—set a strict schedule, stick to it, and rate every session for cardio potential. That’s how you stay mission‑ready and never let those muscles hit a zero‑gravity plateau.