Feel like im loosing myself

I am currently 8w6d pregnant and have been suffering with hyperemesis gravida and I feel like it is taking over my life I can't be a mother girlfriend and student because I am always sick I have been in the hospital twice and have also seen my doctor and talked to her on a regular basis nothing is working I am sick all day I haven't ate a real meal in three weeks I feel like I don't know what to do with myself any suggestions would be greatly appreciated