Hi @dhr53
Resentment is a common feeling among carers. It is important to acknowledge it so we can take steps to deal with it, it eats at us if we don't.
Can anyone help you? Yes, yes and yes. You are not alone.
The carer gateway lists a number of support services as well as a help line - check them our here:
https://www.carergateway.gov.au
The cancer council may also be able to help in a more targeted way and have a support line.
https://www.cancercouncil.com.au/get-support/caring-for-someone-with-cancer/
Carers Australia offer free counseling services (over the phone available in rural areas).
http://www.carersaustralia.com.au