OP, teenagers can be sheer hell (can also be lovely).
My first thought when I read your initial post was anxiety about your health manifesting itself as stroppy and selfish behaviour.
Which doesn't make it right, obviously. But it might explain it.
My only 'advice', such as it is, is try to stick to 'natural consequences'. It's tempting to heap on the 'punishments' in the hope that they will change their behaviour, but better to keep it simple.
If you and your husband pay for your DD's phone (which I assume you do, given her age), she is not allowed to switch it off when it suits her. You are providing it so that you can contact her. If she isn't going to let you contact her, she can't have the phone.
(While we're at it: you ought to retain the right to look at her phone, should you feel concerned enough to need to. Which doesn't mean you can just snoop - but it does mean that if something begins to worry you significantly, she has to hand it over. It isn't her phone until she buys it herself and pays to run it herself, and young teenagers can be very, very stupid).
Secondly, be as honest as you can with her. If you have ongoing health problems, she probably knows something, however much you think you have kept it private. She needs to know as much as she can reasonably manage. Which doesn't mean she needs every detail - but she does need a clear explanation as to why you can't do things all the time.
You need to acknowledge, to her, that you didn't give her enough time to walk this morning.
What she had this morning was a mixed message: "I'm too ill to take you to school'/"but I can do the housework"/"but I can actually take you to school". In her head, you're either ill or you're not. My own experience of having had a very severe health concern years ago is that children think you are able to do everything however ill you are, so long as you are physically present.
You need (and I know it's hard) to try to get over the feeling of not being good enough. Nobody needs to clean the house before the children go to school. I'm at the absolute opposite end of the scale, admittedly - but if you're not well, you shouldn't be worrying about being domestically perfect. Your 'imperfect' standards would probably be a thousand percent higher than my 'quite tidy' ones. I would also try to get away from the idea that your children's rooms need to be tidy. I've always thought that they can make as much mess as they like, provided nothing is actually dying/mouldering in there, and I can shut the door. Weirdly, they are mostly tidy, probably as a reaction to the rest of the house being a tip.
In your situation, you're right that your husband's job is important. As PP say, your health is important too (obviously!), but if your husband has no job, that isn't going to help you - so you are right to acknowledge this. What you need to do now is acknowledge that your health is more important than mopping floors!
I'm almost at the end of teenagers now, thank God - number 5 has saved the worst for last for me. It can be a very bumpy road. But even if your 13 yr old starts being difficult, she's still the same person she was as a younger child, and she'll find herself again when she's older easy to say this, less easy to remember it when they're being foul