What you experienced was called bow steering. You are correct you trimmed down too much. With seat time you will be able to slide that boat through a turn. I always liked dirt track racing sliding a car around turns snow too. I slide my Skeeter through turns I keep the speed and trim up gently turn the wheel you will feel the hull start to slide. Turning it like a car will result in what you experienced. Seat time seat time seat time turn sharply when you must slide when you can be firm yet gentle she w9ill treat you right.
Who ever said nothing in life is impossible.
Never tried slamming a revolving door.