When will the sickness go away?

Co
I am almost 12weeks but my nausea and vomitting has gotten worse over the past two weeks. No matter what I eat, I am nauseous and throw it up most of the time. Can someone give me some hope and encouragement that it will soon go away? I am so miserable, I've tried everything including medication but nothing seems to work. I just need some hope that it will not be forever (although I do understand that I could be)...