Hello there @Harrietsauce, welcome to the forum at this difficult time. It’s really lovely that you’re here to support your father. I’m so sorry to read of his Chronic myelomonocytic leukaemia ('CMML') then Acute myeloid leukaemia ('AML') diagnoses, what a lot to deal with in a short amount of time.
I’m sure you’ve got plenty to read right now, but I’d say this Blood Cancer UK information about Acute myeloid leukaemia ('AML') is really great and links to many further resources: Acute myeloid leukaemia (AML) - what it is, symptoms, tests, treatment, prognosis and support. | Blood Cancer UK
You’ve likely heard of Leukaemia Care, and here is their in-depth information about Acute myeloid leukaemia ('AML'): Acute Myeloid Leukaemia (AML) | Symptoms and Treatment | Leukaemia Care - Leukaemia Care
If you’d like more information about therapy, counselling and support groups, aside from Mind, Macmillan has put together this: Talking therapy, counselling and support groups for cancer | Macmillan Cancer Support
You’ve likely heard of Maggie’s and their amazing centres and services, but do take a look as there may be one near you to pop into for further resources: https://www.maggies.org
And may I just say, you and your father are not alone in experiencing Acute myeloid leukaemia ('AML'), nor his previous (additional?) diagnosis of Chronic myelomonocytic leukaemia ('CMML'). I know of many lovely forum members who are here talking about living with Chronic myelomonocytic leukaemia ('CMML') and their experiences of Acute myeloid leukaemia ('AML'). It’s pretty inspiring.
Your flexibility itself I’d say will be a truly great help as your father will likely have many appointments and, speaking for myself, I love it when my other half goes with me for hospital stuff, especially soon after my diagnosis with Polycythaemia vera ('PV'). I bet your dad will appreciate your company.
Again from experience, if you’re squeamish then there will be a lot of talk of blood cells, lots of injections, and intravenous medicine and it honestly took me a while to acclimatise! Something to bear in mind.
But keep supporting your father in ways you know will be meaningful, and dare I say it sometimes a bit of humour can help too. You know your father best. Remember to take breaks for your self-care too.
I’m sure others will respond as well @Harrietsauce, I hope treatment starts really well for your father. Do keep looking around the forum using the search box at the top using terms like Acute myeloid leukaemia ('AML') and you’ll find further support.
Do please keep us posted.