Starting out
Most people who quit, quit in week two. Week one is novel and week four is starting to feel automatic. Week two is just work, with nothing to show for it yet.
These three are built for that stretch. The workout plan is too easy on purpose at the start, because the first fortnight is about turning up rather than effort. The meditation guide opens with what a wandering mind actually feels like, since that's the thing that makes people assume they're failing. The fasting guide starts at 12:12 rather than 16:8.
Each one says when to expect a change, and it's usually later than week two.

Grip Strength Chart by Age: What's Normal, What It Means
Grip strength by age and sex from a large UK study: what counts as low, what the research shows, and how to train it.

Japanese Walking: What It Is and What the Science Shows
Japanese walking is a viral label for interval-walking research since 2007. What it gets right, and what it oversells.

HYROX for Beginners: Your First Race, Training and Travel
What HYROX is, all 8 stations with official weights, how long to train, and how to choose and plan your first race weekend.

Rucking for Beginners: How Much Weight and What It Burns
Rucking for beginners: how much weight to start with, a 4-week plan, and what the research says it really burns.

30-Day Home Workout Plan for Beginners (No Equipment)
A 30 day home workout plan for beginners: day-by-day calendar, form cues, injury prevention and a real results timeline.

Morning Meditation for Beginners: A 10-Minute Guide
Morning meditation for beginners, a 10-minute routine, 12 techniques compared, and what actually changes in 8 weeks.

Intermittent Fasting for Beginners: The 16:8 Guide
Intermittent fasting for beginners, the 16:8 protocol, women's cycle-based fasting, and what actually breaks a fast.