I am also taking IELTS in a few days. here are some suggestions:
I completely agree with that idea.better also write why you agree with this opinion, for example, 'i completely agree with this idea because most of the accidents are caused by untrained drivers'.
2. your ideas are no doubt very good but are not organized in a way to show how you make your argument valid. for example, first write your main point in the body paragraph, prove it with example and find a solution in final sentence. Do it in second and third, if any, argument and conclude your discussion in last paragraph.
3. I do not write complex sentences and in this way avoid grammatical errors.
the most important life skills should be learned at school.
most important skills are taught at school
It is apparent to everybody as well as the importance of driving knowledge and experience.
everybody knows the importance of driving knowledge and experience.
But yet, there is another even more significant reason.
you can better use it to start the next paragraph.
Some of them drive far beyond the speed
try this: some of them exceed beyond the speed
Those who receive an auto
Hope it helped. Good Luck