Don to worry! Here some tips that might come in handy.
First i should say,getting through ZD or b1 exam or any other exam for that matter, has more to do with learning the techniques, than your actual knowledge of the language. (i guess that is good news for you!)
Having said that, i won't suggest to you,to write the exam before you have completed b1.1 at least(if you are studying Menschen books.)
There are 4 sections in ZD exam
1.hören: this part is probably the hardest part, i suggest you change your Playlist,replace all your Music with german hören at least for a month,you can use german radio or buffet website(very useful.) It does wonders for your pronunciations and prevents you from the Shock you might get on exam sessions (Germans normally speak very fast, it's hard to follow with a native even if you have very good comprehension of all the words!) First try to differentiate the words, then try to understand one sentence at the time(verb, ,prepositions,akk, dativ,...) the last level is try to hold the grasp of the main points in a conversation or dialog. (Even if you don't know all the words)
2.Schreiben and sprechen: the easiest parts in my idea, for this part you just need to memorize Redmittel, half of your work is done! Esp in schreiben. you can easily find them from your books, you don't need anything more! In schreiben with a little preparation you can easily score 80.
Lesen: can be tricky. But still if you know the techniques, you will be surprised how easily you can score in this part! Getting through this part is highly dependent on your ability to grasp the full concept. and practice!!!!!
Don't worry it's going to damn easy, just try to enjoy learning Deutsch!
In any case i suggest you practice with these three books before writing the exam, each book contains module tests, which gives you a sense of what to expect, in a real exam.start with yellow one, then green and then red (i didn't have any photos of the red book, i will add it later.)
p.s you can take up preparation courses, which are offered by Goethe Institut, they are very useful.
I wish you all the best on your journey!
