To log into Veterans Affairs using your existing DS Logon or My HealtheVet account, visit VA.gov and click the Sign in button.
Your screen will look like this. Click either Sign in with DS Logon or Sign in with My HealtheVet.
Enter your existing DS Logon or My HealtheVet credentials to continue.
The next page will notify you that an ID.me account will be created. Enter the email address you'd like to use for your ID.me account, and click Continue. (You may use the same email address as the one associated with your DS Logon / My HealtheVet account.)
Follow the prompts to set-up multi-factor authentication to complete the process.