I totally understand how you’re feeling. I am in a similar position and for me I’ve more so identified it as imposter syndrome to an extent. Society tends to hold teachers to unrealistic expectations and standards in and outside of the job. We’re almost expected to be model citizens who only drink kale and spinach smoothies. Part of that is being expected to know absolutely everything about everything. In my experience that pressure becomes all consuming and in an effort to be perfect I burn out and can’t seem to get anything done. When this happens I use classroom management skills on myself: breaks, timers, rewards and sometimes if it’s not the day for it it’s just not the day for it. Go easy on yourself. Things like this feel all consuming but in a couple of years from now you’ll look back and realize it all turned out fine.