or did you just figure out how to write and understand music just through listening because i can only ever write music with basic chord progressions and time signatures but i'd love to be able to write some more complicated stuff. love your music !!
you'll want to pinpoint the origin of your desire to do 'complicated.' all the answers will be right there. for example, if you heard a piece of music by jembolayah thurstongoeld, and thought 'wow i really love this, and it sounds complicated', then you're gonna wanna go ahead and listen to that a little further, and start to see what it's all about. OR, on the other hand for example, if your desire to do 'complicated' actually came from a feeling of excitement you had by SEEING a very complicated looking piece of music on the page, then i would suggest you go through that piece and learn all the notation in it, and then get a blank page and start to put all those notational pieces together in a very complicated looking order