Did I accidentily make cheese?

We had a pack of milk in de fridge that was off since 21-09 ( its now 12-10….). When pouring it out a bunch of clear slighly yellow fluid came out. What is shown in the picture was left in the pack. It almost didnt smell, just faintly of white cheese. It also had the texture of really really young white cheese. I almost tried it but didnt wanna die. Did I accidentily make cheese?!?!?! Is that even possible?