Skin cycling became popular because it offered structure to people using too many active products. The idea was not to create four more rules. It was to create recovery time.
The useful part of the idea
Alternating stronger treatments with simpler nights can make it easier to notice what your skin tolerates. It can also interrupt the habit of layering every active on top of every other active.
Where the trend gets rigid
A calendar is not automatically intelligent. If your skin is already struggling, forcing an exfoliation night because the schedule says so misses the point.
Let tolerance lead
The practical question is not whether you followed the cycle perfectly. It is whether your skin is becoming more stable, comfortable, and predictable.
The bottom line
Skin cycling is a framework, not a loyalty test. Keep the recovery principle and lose the pressure to follow a template that your skin does not support.