Just know that English sucks. My coworkers, from many other countries, are baffled that their kids have spelling lessons here. In their language the letter is the sound always, and there aren't things like: doubling letters, silent e and the multitude of pronunciations for ough (rough, though, thought).

Our brains haven't evolved with the times. We get stuck on situations of perceived failure, a left over trait to aid in survival so you are prepared for next time. Your brain is taking it as wrong doing and thus shame of letting you ancient village tribe down.

It is easy to say this, and harder to make the mental shift; but you have to find a method to let these things slide. Like a way this laugh them off or IDGAF attitude. We judge ourselves harsher than any other person, once you get to a place where you don't care about judgement from others, all the worry about a flub diminishes.