To be Honest...
Honestly, there isn't much that can be done for listening at the last minute. It's more of a long-term endeavor. Improving your listening skills requires time, and quite a bit of it.
The most effective way to enhance your Spanish listening abilities is to immerse yourself in the language. This can be achieved through various methods. For instance, watch a Spanish movie, or "pelĂcula", switch your music playlist to include Spanish songs instead of your usual tunes, tune into Spanish podcasts, or even make a Spanish-speaking friend online to chat with. Last-minute cramming isn't really viable for listening. Given the variety of accents, dialects, and the vast vocabulary, it's nearly impossible to prepare adequately in a short time frame.
Despite this, we've compiled a list of resources below to aid in your listening practice and help acclimate your ears, ranging from movies and podcasts to IB Past Papers. Feel free to explore them.
For practice, we recommend visiting the Dele website for audio files and questions, along with mark schemes. These are resources we personally use for practice. See resources below.