It’s great you are taking the pill so consistently—that drastically lowers chance of pregnancy. Taking a morning after pill could be considered over-kill/unnecessary but I know it can be stressful and hard to trust the pill. Pairing condoms AND pill, is extremely effective and might help manage anxiety for you? In any case, I’d say the best thing to try is to focus on the anxiety itself. What kinds of things distract you, make you feel better, soothe you? Would learning more about birth control pills help? This kind of thing is normal to stress about, but try and make it easier on yourself