You should have no fewer than 3 email addresses. 1 for official use that you shouldn't feel embarrassed about giving to another adult or putting on a resume. 2nd for anonymous logins or at least for those frequent but maybe expect a little spam. 3rd you can have as many as you want but you need spam/throw away email addresses.

That being said, none of them should give away too much information about you but the official email should give just enough of a hint so that someone that knows you might recognize your email address. So never put your full name or an important date/number in your email address.

After a long explanation why, I recommend first name letter after full last name with a symbol.