I believe that you have a lot of potential, and the overall mix is coming together, but the distortion guitar riffs and drum beats are so loud that they have too much presence. They drown out pretty much everything else, and the synth is relegated to the background so much that it can only be heard well when they pause, which only happens very briefly and at few moments.
Mixing and mastering are simply things that come with time and effort, and they're very rarely something that comes naturally. The palette of sound is okay, but could use more fleshing out and more instruments to really round things out. I also pay a lot of attention to how an artist ends a song, and since this one just cuts off abruptly, that feels pretty lackluster.
Nevertheless, I look forward to seeing how your talents grow and expand as you keep making music! You're doing well and learning your way around FL Studio, and I wish you all the best going forward.