You don’t have to pick the biggest thing. Most women start with the free guide or a Wednesday workshop and move up when they’re ready, and plenty of women stay at the free level for months. That’s a completely legitimate way to use this.
Start today. Go as slowly as you need. There is no cohort, no start date, and nothing to fall behind on.
If your week is unpredictable, if your focus comes and goes, if some days you can do an hour and some days you can’t open your laptop, a program with a fixed schedule becomes one more thing you’re failing at. This one doesn’t have a schedule to fail at.