If you have chosen the wrong email address, or misspelled your email address on your Life Cycle account you can easily change this yourself.
Do like this:
Go into Life Cycle and Settings. Go into Account. Sign out.
Now, go into Account again. Sign in with your preferred mail address.
Now, Life Cycle links to this mail instead, during this procedure your data remains unaffected. Since Life Cycle stores your data locally, changing mails while it’s tracking are two separate things. So you won’t lose any data.