Im not trying to be mean, please read the review fully and take it as constructive criticizem and not personally.
First off, it isn't really dubstep, dubstep is mainly 140 BPM With Synths, wobbles, growls, and leads.
now whilst this song has some of these aspects, it just is not Dubstep
The "B-B-B-BASS DROP" you took doesn't fit with the song and feels out of place
also it is really messy, and feels rushed.
I personally do not like this song, but please keep trying,
I hope you improve.