To make a calendar with InDesign, do the following steps:

1. Open InDesign and create a new document. Set the page size and orientation to match the size and layout of your desired calendar.
2. Select the Type tool from the toolbar and add the calendar month and year to the top of the page. Use the Character and Paragraph panels to adjust the font, size, color, and alignment of the text.
3. Use the Rectangle tool to draw a box for each day of the month. You can use the Align panel to evenly distribute the boxes on the page.
4. Use the Type tool to add the day numbers to each box. Adjust the font, size, and color as desired.
5. Use the Pen tool to draw lines to separate the days of the week, and add labels for each day using the Type tool.
6. Use the Graphics tools to add any additional design elements or images to your calendar, such as illustrations, borders, or background patterns.
7. Use the File menu to save your calendar design as an InDesign document. You can then export the calendar as a PDF or other image format to share or print.

It's important to carefully plan and design your calendar to ensure that it is visually appealing and easy to read. You can experiment with different fonts, colors, and layout options to create a unique and personalized calendar.