We can summarize it here:
Stage 1: You are so confused, you are making a lot of terrible mistakes and can't avoid other peoples mistakes.
Stage 2: You quit making mistakes, but still you can't avoid others mistakes.
Stage 3: You are doing no mistakes and learned already how to avoid the other peoples mistakes.
Stage 4: You are so confident and happy, thinking that you are the best driver on earth, then ... Boom I had an accident.
Conclusion: Most of the mistakes are done by people who got no experience or so confident.
We can summarize it here:
Stage 1:
You are so confused, you are making a lot of terrible mistakes and can't avoid other peoples mistakes.
Stage 2:
You quit making mistakes, but still you can't avoid others mistakes.
Stage 3:
You are doing no mistakes and learned already how to avoid the other peoples mistakes.
Stage 4:
You are so confident and happy, thinking that you are the best driver on earth, then ... Boom I had an accident.
Conclusion:
Most of the mistakes are done by people who got no experience or so confident.