Morning sickness??

So I’ve been battling morning sickness since I was 6 weeks along, and I’m now almost 11 (on Saturday). I have had so many bad days where the sickness gets bad enough that my zofran doesn’t even work. I really hope my next scan on the 14th shows my baby growing healthy and nothing is wrong developmentally. Due to being so sick this first trimester I’m worried I hadn’t gotten enough folic acid. On my good days I do eat breakfast cereal that is rich in it, but I’m still worried. I haven’t been able to eat or drink like I normally do. This is my last baby and I just want him or her to come out with no problems. Any other moms to be battling morning sickness like I am?