I'm gonna give u the best tip you can possibly get, when it comes to difficult techniques. EVERYTHING in this game is FACKING HARD until you learn it. Just like when we first learned how to ride a bike or how to swim. Things will feel impossible. You will be looking at the pros like "omg there's no way I'll ever be able to pull that off".
Fear not however! There is a really simple trick to learning all the most advanced techniques, you can think of, and even how to come up with new ones.
PRACTICE PRACTICE PRACTICE PRACTICE PRACTICE PRACTICE
Never give up, no matter how much you fail, or how hard it will seem. I remember, when I first tried to shffl. It felt like I was wasting my time, and that I would never be able to consistently shorthop with anyone in the game.
But I got hungry and I got greedy and I practiced HARD. (Being depressed and unemployed for like 8 months helps lol.)
It's been 18 months after I starting fiddling with advanced tech, and now I'm confident, that I'm among the most technical players in the world.
If you keep practicing, you're going in the right direction. And if you keep going in the right direction, you will eventually end up where you want. This goes for everything.
Good luck! Upload some videos in a year or two, and show off your ridiculous, south american-like tech skill :D