Actually a really difficult question as very much about the childhood depends on adults (parents, teachers, …) around you.
Maybe this one: “The whole bullying situation will not change until you leave school. Convince your parents to let you change schools.”
You want to get into microcontroller programming somehow. The Raspberry Pi Pico may be a good target to start with. The documentation is well made and you have the choice to either use C++ or Python for programming.