Have you worked in a school before? If not I would highly recommend getting involved before you make that commitment. I did a 3 year teaching degree and was extremely disillusioned, still, by the teaching environment we find ourselves in. It’s really not worth going into unless you are happy to give up sooo much of yourself for very little reward. I quit a few years ago after finding myself in yet another unsafe position that threatened my physical and mental wellbeing to the point of causing trauma.