Your display name, profile picture, language, and country all live in Settings → Profile. Your account email is the one thing you can't change there.
Steps
Open Settings → Profile.
Edit your name, profile image, language, or country.
Save.
Good to know
There's no email-change option anywhere in Wishpicks. Your sign-in method (Google, Facebook, or a magic link) is built on that exact address, so the account stays with the email you started on. Switching emails really means using a second account. If that's a problem, contact support and we'll work out the best option with you.
A Wishpicks profile holds a name, an image, a language, and a country. That's all. No delivery address, no phone number, no postal code, on your profile or on your wishes.
Your display name shows to wishlist owners when you're an invited collaborator, and when you reserve a gift on a list set to show registered reservers' names. Worth picking something you're happy for them to see.
Related
"Why can't I change my email address?"
"I can't log in — what should I check?"