My first learned language is English and right now I cannot think of anything that annoys me very much in this way (I'm pretty sure there is something, but nothing comes to mind right now).
And my second learning language is Italian and I do not know it well enough yet to point out any of these annoyances, but maybe, just maybe, in the future, if I will learn this language (I hope) I will be able to answer this question.

I actually started learning it while I was in my first year in university, so I had motivation, because I was receiving grades. But now, I don't know what to do and I do not really have a lot of money for private lessons, so I should learn myself, but as I said - no will power.