You've created numerous new layers in Photoshop by clicking the New Layer Icon in the bottom of the layer palette. Now, let me show you the "make better" key trick.
Hold down the alt/opt key on your keyboard when selecting the New Layer Icon. Now you can quickly name your layer, set the opacity along with other options if desired.
This is much faster than going back later and properly naming your newly created layer. It also helps prevent you from forgetting to name your layer and ending up with generic Layer 1, Layer 2, etc. which can cause you a great deal of grief later when trying to manage your Photoshop file.
Enjoy the alt/option "make better" key when creating new layers!