you should educate yourself more on the medication you are putting into your body everyday. If your anxiety is that bad, use condoms or stop having sex until you fully trust your pill.
I used to have extreme anxiety that I would get pregnant, that’s because I didn’t understand how the medication worked or what affected my protection.
Also just keep in mind everytime you have that thought just remember that you take it everyday within the time frame, if you have trouble with remembering take a video when you take it and put or say the date in the video.