It is very important to save your work often! Otherwise, you might lose something important.
To save a new project in Scratch, click on File and then Save as (Save Project for Chromebooks using ScratchX). Give your project a name and then click Save. Once your project has a name, you can save it by going to File and then Save.
DO NOT name your Scratch file 男奴们的性调教生活Start. This will overwrite the blank file that should appear when you open Scratch from the Birdbrain Robot Server.
See https://www.birdbrain男奴们的性调教生活.com/男奴们的性调教生活duo/scratch/program/#saving for up to-date instructions on the Birdbrain 男奴们的性调教生活 website.