This is how it goes and to be honest it doesn’t really change as you progressI'm a white belt. Of course I don't have perfect technique.
That doesn't mean I'm panicking. I am making a conscious effort in every technique I do. To the point where most of my coaching has been to stop overthinking.
I did the technique wrong. But I did so remembering advice I'd been given and trying my hardest to follow it.
You learn a technique, get some success with it, but at some point hit a wall where it doesn’t work so you start looking to remove the errors in your technique &/or closing down / anticipating the options for your opponent to counter
Apologies if my advice wasn’t helpful - please feel free to ignore (I’m just some guy on the internet)
The best bet is always to go to your teacher and say “I got arm barred when doing the upa escape you showed the other day, can you help me prevent that”
Although that probably negates the use of this forum