What schooling should I pursue?

I'm currently living with my girlfriend, I have a high-school diploma and I'm working retail full time for 21 an hour. I genuinely do not know what I should do next or even go career wise. I've been very interested in electrical work and technician work for quite some time now, I absolutely love to fix old electronics and game consoles as a small hobby and I wish that I'd be able to turn that into some sort of decently paying career. I live in California and I grew up in a lower middle class family so money was always the root of some kind of issue, and its just genuinely ludicrous to be able to afford anything in the area I live in. In conclusion im trying to find a job similar to the things I enjoy doing (repairing/putting together etc.) and be able to find some job or schooling without spending years of my life realizing I absolutely hate it and I just work a dead end job for the rest of my life. I've been told to join the union, I've been told to go one of the many trade schools in my area, and I've been told to become an apprentice. If anyone can help make things a little less vague so I can have some sort of idea of what to do Id greatly greatly appreciate it.🙏🏼🙏🏼🙏🏼