Very succinct analysis, @NotFastEnuf, and profound truth!
Sage advice! It doesn’t matter what you fly. What matters is practice, practice, practice!! Most here are living proof that practice works.
Speaking of which, I need to heed this sage advice myself – lots of talk (online), not enough walk (flying practice).
Yes, the famous Spanish dog park!
@Aaa: You have a lot of courage and perseverance to keep flying there, and your flying has improved a lot as a result! Keep doing what you are doing, and you will keep getting better, whether you fly a 2" micro-brushless at the dog park, or a big 5" quad when you move to the countryside.