What do I need to do to secure my email?
It depends how you want the email secured. If by "secure" you: 1) don't want anyone getting to your email inbox or filed items that are using the amil service provider's mail server, then there is a bit of security provided by your userID and password. 2) want the email messages secured from the time the email leaves your computer until the time the recipient opens the email message, then an app and agreement with the recipient to use a password to open your email are needed. There are other methods between the two extremes, above, and each carries their set of baggage requiring some sort of encryption/decryption/authentication... all the way up until the recipient forwards your email to someone else... then the message is outside your control... at which point you realize there is no such thing as "secure email".
Make sure your anti-virus program stays up to date.
Shove it up ur bum