Do you want to change your current password into something else?
Here is how to do it:
#1 Go to "Users" under the section "Manage People" in the dropdown menu.
#2 There you have to "edit" the user whose password you want to change.
#3 Now just type in your new password twice and click on "Submit".
It's as easy as that! Now the only thing you need to do, is to memorize your new password well.