I often hear people mention that they have a hard time getting started in a new journal due to the need to “make it perfect”. My hint for overcoming that hesitancy about starting a new journal?
Skipping the first page all together or scribbling all over it.
Even better? If you have littles in your world, let them scribble all over the first page or two, then the need to keep it "perfect" seems to fade and you can just get on with the good stuff.