Once you have downloaded 2-3 official sample PDFs, you need a strategy. Most learners fail because they print 50 pages and stare at them. Do this instead:

5 parts including blog posts, newspaper articles, and formal advertisements. Goal: Identifying main ideas and specific details. 2. Hören (Listening) Time: Approx. 40 minutes

Print out one free from the Goethe website. Sit in a quiet room. Time yourself.

You're looking for a free PDF download of the Goethe-Zertifikat B1 exam preparation materials, specifically the "neu" version. Here's some helpful information:

Ace Your Goethe-Zertifikat B1: Free Official PDFs & Prep Guide

Print the PDF "Kandidatenblätter," set a timer, and complete the modules in one sitting without a dictionary.

He had bought the textbook, but it was back in his apartment, and he had no money for the expensive online practice modules.