I’m not sure what "fu10 day watching 18" means. I’ll assume you want a targeted tutorial about "how to plan and run a 10-day watch or monitoring period for users aged 18" — for example, a 10-day supervised observation or monitoring plan for an 18-year-old (health, behavior, or study-monitoring). If that’s wrong, tell me the intended meaning.
The first three days were pure adrenaline. fu10 day watching 18
To give you a helpful blog post, I’ll make a reasonable assumption: “Follow-up 10-day watching [something related to ‘18’]” – perhaps binge-watching an 18-episode series or a 10-day challenge watching content from 2018, or a show like 18 Again . I’m not sure what "fu10 day watching 18" means