I started my flying training at Rochford, now london southend, in the 60s and the level of instruction was pitifully low. On my first solo I porpoised along the runway because I hadn’t been taught what to do if I bounced.
I too was given a “roasting”, an absolutely pointless and ignorant way to treat a student; did the instructor really believe that I was trying to kill myself?
Determined to right wrongs I became an instructor when I had the experience.
One of my first instructors was a Walter Mitty character who went on to the CAA and was responsible for the prosecution of an airline pilot who ultimately committed suicide.
The other became an airline pilot, crashed a light aircraft and even landed another gear up.
There are some very good instructors around..go find one.