Do two things right now
1) set up an email address that you only use for on-line shopping. Do not use it for anything else.
2) get a credit card with a low limit, maybe $500 and only use this for on-line shopping

You are entitled to see your credit record once a year. Get it and ask to have anything incorrect expunged.

Ask to have your credit file flagged. All suspicious activity will trigger a call to you.

You can get through this.