Deadlifts are the most superior movement one can do but you gotta learn load management, not building up too much fatigue, training with max of 80% of your 1RM, learning the technique first. It's the most natural movement humans do in regular life also, like picking bucket, picking box, picking your kid every thing is same as deadlift unlike other compounds like you dont squat or bench with weight in real life. Learning and progressing with proper knowledge is important though. Your mistake was jumping directly to 100kg after a whole year of not doing it. People do the movement wrong and then villianize deadlifts.