I know how easy it is to worry, but all that is doing is ki-ling yourself.
Instead just keep focusing on what you can control in the job and preparing for if you need to find a new one. Get your resume ready, spend 20 mins a week practicing interviewing questions, spend another 10 mins a week looking for new jobs, etc.
Your worry won’t change the outcome one either way. I know it is easier said than down, but try to capture your thoughts and change them when worry comes.
Good advice from @c7+1kama8na2.