I HAZ MASSIV SKILZZ! YOO I GOT A 934534053986304585309 PTS LAP BEST. i IS THE DORIFTO KING YOO.
On a more serious note, you may very well be drift king for 3 corners. But can you do it for lap after lap? Consistency is the key.
One other tip is the usual dull, boring line I see. When doing transitions, feints, initiating a drift, do it with aggression, snap it. Migth as well look at boats glide from one side to another if you want to play it safe.
Get close to walls, optimize the track, clip the curbs.
Then gradually, all those "techniques" will come by itself.