Thanks for reaching out, polpez.
It sounds like you'd like to get started using Hide My Email, and we can definitely help.
Keep in mind that Hide My Email does not mask your actual email address for emails you send, but instead generates a unique email address for when you sign up with a new app or website so your personal credentials are not in their system. When you receive communication from these apps or websites, such as newsletters or marketing promotions, they are actually sent to the randomly generated email address which forwards them to you. If at any point you want to end your relationship with these apps and websites, you can turn the feature off and the randomly generated email stops working, and you stop receiving forwarded email.
More information in the article viewed before posting: What is Hide My Email?
Hope that helps!