Or just pass, if you are a horrible person
May I introduce you to gopass - a handy password manager based off of the pass utility for linux. gopass will let you store your encrypted passwords in a private repository. But, first things first. Inorder to setup your gopass, see below. For any questions that are not on this page, checkout the gopass documentation. Or, leave a comment!
If you have not noticed, internet security is becoming more and more of a necessity.