To smooth the process of making trackers, obsidian-tracker provides three commands, "Add Line Chart Tracker", "Add Bar Chart Tracker", and "Add Summary Tracker; Just type Ctrl/Cmd+P to activate the command palette, then type "Tracker" to search the commands.
After a command is executed, a code block will be added to the next line below your cursor. The added code block will contain the most frequently used keys. To see the complete list of input parameters and description, please check this document.
Now you can fill the key-value pairs to fit your requirement and then press the preview button to see the wonderful tracking result from your data.