Don’t study too hard these holidays- you need the break, trust me.
But for German, you can definitely get ahead (without burning out) by exposing yourself to the language as much as possible.
Can confirm that to improve listening skills, just watch movies in German with German subtitles (I’d recommend watching Tatort TV show)
. Tatort is one of the most popular shows in Germany.
Also, just find clips online and try to write stuff down while you’re listening (try Deutsche Welle)
For improving vocab, spend about 15-25 min per day learning German. Try Quizlet, it’s a free app/website with flashcards that actually pronounces the words in German and it has pictures. You can make your own cards or use other people’s. it’s so amazing.
For reading, just find random articles online.
For speaking, I’d also say that the best way to improve is to actually talk to your German classmates/anyone you know that can speak German. Or you can make flashcards in Quizlet and try memorising answers (you can automatically listen to your answers with the German accent)