I’m so scared 😭

This is my second pregnancy after a chemical back in 2014 and it’s taken that long to conceive and everything I usually eat , I’m finding out is no good . So I’m scared to death to eat anything at all . I love bagged salad mixes from Walmart but supposedly I can’t eat those . I can’t eat fast food . I can’t eat canned food . Not too much salt . And after all this I have no clue what will be safe for my baby . Someone please give me some advice .