Use a ready-made overlay

Start from a designed layout instead of a blank canvas.

The market has complete layouts you can take and then edit as your own.

Open Overlay Market in the sidebar.
Browse the layouts and pick one you like.
Click to add it - it becomes yours to edit, so changing it does not affect anyone else.
Open Stream Overlay to adjust the wording, colours and positions.
Copy the link into OBS as a Browser source.

Applying a template REPLACES what is currently on your canvas. If you have already built something, it is worth saving your layout first.