@Sally ******
the longest break a language school will have is the songkran holiday which is Thai new years. Usually get 2-3 days plus weekend, so 4-5 days in a row. Otherwise no. The purpose of the education visa for language school is because you said you MUST be in Thailand because you MUST attend class in person. If you're leaving Thailand you're not in Thailand attending your class.
Because the education is the most abused visa, it's looked at very harshly by immigration. Just having one in your passport will get you extra scrutiny for years when you enter Thailand.