This is the 75th most frequent Thai word.
จาก
"From" or "leave."
In this sentence, 'จาก' denotes the starting point of a journey or origination from a place.
เธอเดินทางมาจากกรุงเทพฯ
She traveled from Bangkok.
Here, 'จาก' indicates the source of something, in this case, the person providing advice.
เขาได้รับคำแนะนำที่ดีจากอาจารย์
He received good advice from the teacher.
Here, 'จาก' is used to express a source or means by which something happens, specifically 'experience' as the means of learning.