well the first model i crashed...was an eaglet (3 channel)...you know, that stage you go through before join a club
And that thing that most noobs do is too much input
It 's was okay until it went inverted ....and of course I pull on the elevator too, trying to recover.

Even after learning to make minor adjustments while trying to keep a straight flight path...I still coudn't slip very will.
Becuase i was just bumping the rudder.

Way before I incorporated the rudder into my banking.
The manuver that taught me to hold the rudder a little longer was the slow roll or a 4 piont roll.
At 2-3 mistake high, i practice doing a slow roll without losing altitude.
It helped me to use the rudder stick with more precision.