God don't do it!! My husband career changed into teaching (teaching high school science), he then career changed out of it 7 years later as it almost broke him. Utterly ridiculous workload and no time to spend with his own children. He was constantly exhausted, leaving everyday at 7am, not getting home until 6pm, then getting work out again at 8pm and working until bedtime. His missed every sportsday, every assembly, school play etc in school time. He was run into the ground for very little financial benefit, it was awful.
He now has a 100% wfh job, he's paid a lot more and he can take our children to school, he can attend sportsday, assemblies etc with ease, he has great work-life balance and no stress. He has time to spend with our children, energy to exercise and he is much happier and healthier. I would never advise anyone to enter into teaching now, it's awful. Unless you teach an easy subject like art or similar where there is little teaching, marking and no pressure to meet targets like there are for core subjects I just wouldn't.
You would be much better side stepping in what you already do, either retrain in something with better hours etc, I know quite a few nurses who retrained as health visitors, they all have children and love it, no more shifts, 9-5 and much less stress. I also work in public health with lots of nurses, they earn well (all band 8's+) and have 9-5 jobs, most are 100% work from home too. Obviously they don't practice anymore, but working in population health is still helping people, just on a much larger scale and not directly patient facing.
I'd do anything but teaching, it really isn't worth the holidays.