Looking for help within bass in my productions

Easy all, I’ve been producing a little over a year attempting all kinds of genres and the one ive been most drawn to was dubstep, ive been looking to make my own basses but as everything i know is self taught im unable to achieve what i’m trying to get, im trying to make a dubstep sub bass similar to the one in this tune by kahn https://www.youtube.com/watch?v=efbCM86Wzh0

if anyone has any ideas or could educate me that would be awesome!

im using fl studios currently, so id be looking for tips around that software, plugin wise i use 3xosc, NI Massive and serum