Turkish Airlines Flight Delay and Insufficient Flight Attendants

At the time we were supposed to board the plane, we were kept waiting. After a while, some passengers were asked to disembark. Eventually, boarding began. During takeoff, we experienced a 30-minute delay. There was only one flight attendant serving the front section of the plane (this was the first time I saw a single attendant trying to serve so many passengers), and she was struggling to attend to all the passengers on the fully booked flight. The pilot managed to reduce the 30-minute delay to 10 minutes during the flight. However, after landing at Istanbul Ataturk Airport, we spent an additional 40 minutes taxiing on the ground. Passengers, including myself, who were worried about missing their connecting flights, were quite stressed. Later, we found out that our connecting flight was also delayed.
I have been flying for years and have flown with different airlines. I used to think that Turkish Airlines was of a different quality, but I no longer believe so.
It was a stressful and exhausting journey.