Yun's core skills?

Hi, I learned the game’s basics and decide to pick this loud-mouthed guy as a main, so what should i move to next? Juggling/Appyling Pressure/Combo training/normals linking/footsies or hone my execution (dose it necessary for Yun?)? Thanks for advance.

Learn safe pressure and be ready to react to situations that can stem from when you stop.

Train your combo execution so that you never mess up ( it can actually be done very quickly with Yun )
And then endless until you realize the weak spots that follow you against multiple players and then work on those.