One other thing, add two-factor authentication to every account you can, it seems that most companies offer this now. You can also inform most of these companies that you are a victim of identity thief, they can flag your accounts which requires them to obtain additional verification of your...
Contact the Internal Revenue Service and add an Identity Protection PIN to your SS#, you will have to have this pin in order to file taxes.
Good idea to freeze credit and getting a monitoring service. Sounds like you have Costco, if you are an executive member they have a monitoring contract...