Happy not to long good arrangements whit the instruments
Great job! :)

ducking is a much better term than sidechaining, also ducking is insanely easy in FL, i always thought i was stupid because i couldn't figure it out but here's how to easily do it without all the automation BS

link your kick drum to your bass in the mixer and right click on the arrow at the bottom of the insert (kick and bass are in separate inserts obviously), select 'sidechain to this track'

now your kick is sending input to your bass, the kick itself isn't being sent but the transients from your kick are being sent
basically the waveform of your kick is going to automatically set the volume dropoff for your bass (way faster then trying to guess the right automation points to make it duck better)

now on your bass insert, pop on a limiter and go to the compression tab, right click on the sidechain box and the insert your kick is set to should appear so select that insert.
then in the loudness section, turn down your THRES knob by like 20-30% then up the RATIO knob by the same amount

now you have Fruity limiter doing the most basic duck it can, the rest of the tweaks are up to you however as your ears are the best judge

also another fun tactic ive picked up on is using PEQ2 and cutting out the bass completely with a very steep low pass and automating the 7th bands frequency knob to follow the kick drums waveform, so the bass is getting EQed out while your kick comes in nice and clean

also great song yo, i like your sound design throughout the track
watch your volume with hi hats and crashes and what not as those are part of the ''if it sounds quiet, its probably not that quiet'' group of sounds

great work yo keep it up!