Hi Ranz, I'm so glad you've found this site. It's a really good place to come to vent, and be reminded that you're not alone.
I remember when my husband was going through chemo, the one thing I wanted most was to vent to someone who could respond with 'I hate that part!' I found this site, and three years later I'm still benefitting.
I will second Maddie's recommendation that you look after yourself as well (as impossible as that sounds!) It will keep you in the best condition to look after your family, and prevents storing up problems for later.
Take it day by day (or sometimes hour by hour), and know that we're all cheering for you. xx