It really depends on what your goals are with your bullet journal. Maybe it's to stay organized and track tasks, or perhaps it's to get creative with your ideas. Whatever the case may be, there's no wrong answer to this.
One suggestion might be to start your bullet journal with a few pages of inspiration, such as quotes that motivate you, inspirational words, images, or drawings - anything that sparks your creativity and reminds you why you're trying to stay organized and productive.
You could also start with a ‘why’ page, where you outline your main goals for bullet journaling, as well as how it'll help you. That way, whenever you start to feel overwhelmed or less than inspired, you can always come back to your ‘why’ page for a re-motivating source.
You can also opt for more practical layouts, such as a key page, an index, and a few pages dedicated to yearly and monthly goals. This is especially helpful if you're using your bullet journal for more normal tasks and to-dos.
At the end of the day, there's no ‘right’ or ‘wrong’ way to set up the first page of your bullet journal. Decide what’s most useful and inspiring to you, and go with that. You can always change it up and switch things up continually if your goals and interests change.
