Oh well, that sucks. Guess a portable unit would work in this case. Could just jimmy the pipe and make a diy block for the window itself. It’s just a simple tube that sticks out the window. Good to know a bit about them before getting one.

https://youtu.be/_-mBeYC2KGc

Here’s a great video on the topic

If you’re without an ac in Europe I highly suggest getting a simple window unit for your room. They are easy to install. Be sure to seal your door so the air doesn’t escape. Portable ac units are known to be very inefficient, be wary of those. Cold showers help in extreme circumstances. Block all sources of light. Blackout curtain or just some covers over the windows. Keep humidity below 60% if you can, dehumidifiers will help but larger ones will rack up your electric bill quick.