Keep praticing boy, its the only way to improve your skills.
You seems to do a LOT of oversteering in your drifting, your suppose to be in countersteer all the way during your drift. Learning the basic techniques of drifting probably gonna help you to understand ''rules'' of drifting, try to get Best Motoring - The Drift Bible by Keiichi Tsuchiya, is quite old, but still THE reference to how drifting.
Next, i have some question for you, what kind of Skyline it is, and wich tyre are suit to, and finally, your controller are?
well an Age isn't always the best excuse for anything related to skills of gaming. Having said this, I'm not expecting a baby can do the same, I'm just saying that lot of us are exposed to video games earlier and earlier during childhood...
Don't care who the heck Dragon Farce, err, Force is.
Something I noticed in the vid just now: Your car has understeer issues. The nose "pushes" until the tail breaks loose. I also noticed a good bit of rear body roll. Stiffen the rear springs up, possibly soften the nose.