YangZifan-BA7KVH You could try using an SDR to listen in. Currently, amateur radio communication primarily involves voice and narrowband data transmission.
Then I will learn about DIY electronics (like microcontrollers – I'm learning those too). This way, I can build and experiment with things myself.
Also, I want to mention a practical issue: In some areas, amateur radio clubs may be divided into factions with internal conflicts and disagreements (this has been the case in my area for over 10 years). So, try to find local young hams or students who can help you.