tkraikit's post in Keyboard shortcut for opening a specific note? was marked as the answer
Following up on @DTLow's comment, you can directly access shortcuts using CMD-(number), e.g. CMD-1 will open the first shortcut, CMD-2 will open the second, etc. If you make your table-of-contents note your first one, you'll always be able to jump to that using CMD-1.
Hope this helps!