how do I change my email address
Brett . ✭✭✭✭✭
If you are a Member of the Church; then, through your Church Account in "churchofjesuschrist.org" (formerly: "LDS.org"), under "Contact Settings" and further under "Email Address". That should eventually filter through all the Church programmes that you use - but, it can (may) take a day or so (24 Hours or so) for them tho synchronise. If you have any problems/issues, you can call the "Global Service Centre", they should be able to assist you.
If you are a non-member User/Patron of "FamilySearch"; then, through your "Settings" in "FamilySearch", under the "Contact" 'Tab'. That can (may) take a day or so (24 Hours or so) to properly take effect (synchronise). If you have any problems/issues, you can call the "FamilySearch" 'Support' under "Help", they should be able to assist you.
I hope that helps.