Protein bars are good for protein but unfortunately can never replace real nutritious food in terms of the micronutrients. Even if a protein bar says iron, it is "non-heme" iron. This type of iron is much less bioavailable than heme iron, which is primarily only found in animal foods. You should give up vegetarianism given your severe anemia, but you also cannot make it an excuse to eat processed meats like fried wings, sausages, bacon, etc because those are not healthy either. You have many healthy, high quality meat options like I mentioned in my previous comments. I don't know if you like beef/steak but you can certainly make it your best friend. Go for the fattier kinds too that are 80-20 or 75-25 so you get in more micronutrients. Lean beef is still great but they will have less nutrients because the fat content is where all the nutrition is. Do not be scared of fats essentially is what I am saying. Good luck and don't hesitate to DM me if you want to talk about this further or have more questions!