How to Make 3D Text in Adobe After Effects

Step 1: Create a Text Layer, Go to the menu Layer > New > Text. Now type what you want your text to read, choosing font type, size, style,
and color from the Character panel.

Step 2: Make the Text Layer a 3D Text Layer by check the 3D box on the layer panel.
A little 3D cube will appear when 3D is enabled on that layer.
If you can’t see these options, try clicking the Toggle Switches/Modes to alternate views.

Step 3: Create a new Null Layer from Layer > New > Null Object and make it a 3D Null layer.
Select all the text layers except the Null layer you just created, click on the whip, and drag it to the Null layer.

Now that all the 3D text layers are parented to the Null layer, display the rotation properties (you can press the R key)
to adjust the X and Y-axis.

Credit : https://borisfx.com/blog/how-to-make-3d-text-in-after-effects-4-methods/