Space Beach - Theswitchoff

So I’m pretty new to the music scene and I really want to improve.
I started making a Song but I don’t really know how I should make the drop sound.
I also think that it needs some tweaks and stuff, so I figured, maybe someone wants to help me with the project.

https://app.auxy.co/projects/G3J6wLdoMEBgK1Sdr7dp1Q==

Tell me what you think and what I could do to make it better. Thank you