Every one is different unfortunately my mum was sick every day for 9 months but I was sick only for two weeks between 8-10 weeks I hope it gets better for you :( 2nd trimester is soo much better than the 1st if that's any consolation :)
I know exactly how you feel I'm 10 weeks and feel sick almost everyday. It's so horrible makes me cry I'm not gonna lie haha hopefully 2nd trimester is better for us both