Help, I don’t know where to start

Hey so I’m trying to get into coding but I have no idea where to start. I’ve already done some coding in the past but it was just a simple one at my school and now I’m too old for it. So I guess my questions are: where do I start? Should I find a community, read a book, get an app? What language should I learn, or does it even matter? Please, if anyone has any advise I would love to learn more!