In Brick Management, go to My Bricks.
Bricks that you clone or create will appear under My Bricks.
Please note, that the bricks that you clone or create will only be visible to you in this space. They will not be visible to anyone else. If you wish to share to share a brick, you must share the URL (See related article: Rx Bricks Create: How Do I Share a Cloned & Modified Brick or a Brick That I Created from Scratch?)