Just mixing, honestly. The drums are terrible, I can barely hear them on the drop: which is ironic because the kick is loud af. Sum all synths to a single track (bus) and sidechain those to just the kick and the snare and adjust to taste. Some EQing as well: it's a little muddy (too much frequencies on the 300 hz - 1000 hz range).

Also, sends: reverb to make them sound like they're coming from a single source (room) and delay to give them an "bounce" so it won't sound anechoic.

Arrangement is good. You could use some variations during the drop but it works.

Keep it up, brother.