Many students prepare for TOEFL for 2-4 months, and some students will have a surprise training for one month before the exam. It can be seen that most students still hope to complete the training in about three months and break up with TOEFL, but this does not mean that it is the best choice.
Generally speaking, students with good learning foundation will have shorter TOEFL training time, mainly because they have a solid learning foundation and strong learning ability, so they don't need too long training.
It can be seen that the duration of TOEFL training still depends on its own conditions, and some people with poor foundation may not have enough time for half a year. Therefore, students should first find their own position and choose as long as they need training.