He was saying fire is very tricky and dangerous and susceptible to emotions which is why it needs way more focus for lighting bending and you need to be detached from emotions

اها نه i was going on a making everything about ttrpg builds rant

ای بابا

But zuko always had identity crisis etc

And azula was very cold and detached form emotions since childhood hence her faster improvement

But notice how he at time fights with weapons and is so very good at it

اره ولی بنظرم ازولاهم خوبه در این چون جفتشون از‌یکجا ترینینگ گرفتن تکنیکلی😔

Azula was standing against 4 elements at the same time in the chase episode she is very strong

16 year olds be doing crazy stuff over there