Living in The Hague for 6 months!!

Hi I (22M) will be living in The Hague, NL for 6 months! Im from Mexico and never been to Europe, what should see in city? I want to learn all the cultural stuff as well as nightlife and fun tours. Also gonna be traveling around this part of Europe. Could really use recomendations or warnings about living and/or traveling through Europe.

I've already planned trips to Prague, Budapest, Split and Milan. We're travelling to those spots as a group of 5, but I'll for sure do some solo trips! Anything helps, thanks!