How to stop someone from jacking my account id

Read this article if you think your Apple Account has been compromised. --> If you think your Apple Account has been compromised - Apple Support

Use the information in this article to check your Apple ID device list to find where you're signed in --> Review devices signed in to your Apple Account - Apple Support

Related materials:

Personal Safety User Guide

Personal Safety User Guide - Apple Support > open the Table of Contents and review the articles

An article with general information about security and your Apple ID --> Security and your Apple Account - Apple Support

Contact Apple for help with Apple ID account security. This page provides country-specific Apple Support contact information ➞ Contact Apple Support - Apple Support

if it was me then I would change the appleID password

Change your Apple Account password - Apple Support

and maybe read

If you think your Apple Account has been compromised - Apple Support