First Journal
Most beginner advice about first journal comes in the form of fixed rules — do exactly this for exactly this long, then stop. That works for the first few attempts but breaks down as soon as conditions change. First Journal is more usefully understood as a set of relationships: what is happening, what you want to happen, and the small adjustment that brings the two closer.
A practical way in: take whatever you currently do for first journal and try one experiment. Change one thing — a setting, an interval, a piece of equipment — and pay attention to what changes. Two weeks of small experiments will tell you more about first journal than any single article. The articles here can offer a starting point; the rest is yours to discover by binding.
A final note. The aim of bookbinding is not to look like someone who does bookbinding. It is to enjoy the doing — the slow build of competence, the small surprises, the days when something just works. Keep the gear modest, keep the schedule sustainable, and pay attention to tools. Most of what is good about the hobby will arrive on its own.