All day sickness 😩😩

I am 8w4d and I feel like I'm dying. I'm nauseous from the time I wake up until the time I go to sleep. I dry heave all day multiple times. My face is so hot and I'm dizzy all day to the point I can't stand up for more than 10 minutes at a time. Is anyone else experiencing this? My last pregnancy was 18 years ago and while I remember being sick I KNOW I wasn't this sick because I was in school and was able to function. I'm to the point that I'm not even happy about this pregnancy anymore. Any advice would be appreciated.