Miserable I can't cope with this

I'm 7 weeks an 2 days ..... this is my last pregnancy with my 3rd and we feel blessed .... but I'm sooooo poorly with morning sickness and every smell is making me sick. I can't eat anything except bread n butter an water ...... it's lasting allday ...... I cannot cope much longer .... I have tried lemon , ginger , motion bands , rich tea biscuits as soon as I open my eyes ....... anyone suffering the same ??? If so have u found any help?