I totally feel your pain. I had HG for 20 weeks this time, and even on zofran there were days I would literally throw up all morning and just go back to bed cause the day was impossible.
I truly feel for you - I could barely look after myself, let alone DD and partner.
Do whatever it is you need to, just to get through the day.
I'm 33 weeks now and still struggle to eat much at all and still feel nauseous most days, but haven't throw up much since about week 24.
I still live on salad biscuits and orange juice, the two things I can stomach most days.
And I tried every single trick in the book and not a thing worked (except the zofran was the most helpful thing. Gotta love paying that kind of money for almost 6 months!)