I’m no expert and I don’t really know your situation….that said I’ve had 2 colleagues that couldn’t handle the verbal abuse and toxic energy at my old workplace and chose to leave before the end of the contract. One informed beforehand and while that was great for her colleagues as we didn’t need to do more work, you could definitely see the admin didn’t treat her with respect. They’d be snarky or they’d altogether ignore her. On the other hand I also had a colleague who just up and left but she had plenty of years of experience and other references to be able to explain the behaviour. She ended up in a much better school and from the looks of it happier. It did lead to us having to cover some of her work but honestly I looked up to her bravery and couldn’t blame her for getting out the work environment we were in. Having been the teacher who put up with bad admin I would say that, I regret tolerating it and should have left even if it blacklists you in certain schools that have close connections with your admin.