Keep practicing!

I gotta be honest with you, this is an awful way to use sidechaining. I know you're experimenting, so take this from some who does a lot of sidechaining: the way you've used sidechaining is really awkward in this song. The way that BLIDDLEDINGDINGDINGDING pops up and the melody just completely disappears is annoying.

Don't make the entire song come to a hault everytime your output comes in :). Try sidechainging a bass drum and a lead synth, or two lead synths both going crazy against each other like they're fighting for supremacy. You can also try adding little vocal samples and sidechaining something underneath that, so everytime someone yells it ducks under it. Kind of creates this sweet image of someone scaring the synth away xD

There's a lot of stuff you can do with sidechaining, and it's really fun when you get good at it, keep practicing man :) I did sidechaining in my song "Lying Whore" . You should check it out :)