email addresses questions

Hi, I have recently become more interested in my privacy and digital footprint and have questions based around email addresses and services. Does anyone here use protonmail? Do you recommend protonmail? Do you recommend more than one email address? If so, what do you use your seperate email addresses for? How do you feel about using your name or part of your name in any of your email addresses? When it comes to creating profiles on social media and websites is there any rule of thumb or anything I should know and consider as far as email addresses?