Help with ttc

Hi. Im just wondering if anyone had advice on how to ttc healthy and better. Ive being actively ttc for 5 months and feel somethings not hapoening cause im not healthy enough and stress to much. I have bad anxiety and get stressed easily. I started taking vitamins but made me vomit everytime.

I did get my mirena out Sep 2022, AF as being pretty much on time and 3/4 days long since removal. I took ovulation tests and was positive around CD17/18 most months and AF CD 29-31. So I feel my luteal phase isnt long enough maybe?