Lifters drown in metrics: HRV, sleep scores, body-fat guesses, weekly volume charts. Most of it doesn't change tomorrow's session.
Track these first:
- Main lift loads and reps — the story of progressive overload.
- Bodyweight trend — weekly average, not daily panic.
- How hard sets felt — a simple RPE or "easy / hard" note.
If those three are moving the right way for your goal, you're fine. Add complexity only when a plateau needs diagnosis — not because an app offered another dashboard.