If you want some structure in your notes you can number them.
Go to View - Notes master, click in the text of the first level en choose the Numbering button in the Paragraph group. Select the number you want. In the video below I chose caps, numbers and lowercase.
Click in the text of the first level again and increase the size using the Increase font size button. Repeat if necessary for the other levels.
If you want to change the colour of the text proceed in the same way but this time choose the Font colour button.
The positioning of text in the numbered levels is rather far apart but you can change that by adjusting the indents in the ruler. Click in the text of the level and drag the top carat to change the indent of the number. Drag the top carat of the remaining two to indent the text (position the cursor on the top of the two).
Close the Notes master by clicking on the Close master view button.
When you type your notes go to View - Notes page to see the effect of your changes in the notes master. Click in each level and type your text, use the tab key to reach a lower level, shift+tab to reach a higher level. With each enter the numbering increases on that level.
Finally print your notes pages.