My advice to you: be a journeyman instead of a factory worker. It's a long process and has a lot to do with luck but I think if you are really after doing work that you love, then that’s the way to go
You can't possibly expect that you fall in love with your first job but most likely you will find something interesting about it, use that as a clue to switch to different things until you find something you like. During this search you yourself change and the things you thought are interesting would not be interesting anymore.
Working on a side projects is another way but until you start doing them as a full time jobs you can't say whether that’s what you like to do.
Like most good things in life, this also comes with a combination of effort, experimentation, and luck.