Do what you can when you can, and otherwise heed your body's signals that it needs to rest. Even though it seems like it's been a long time, it really hasn't. Chemo can take up to 8 to 9 months to clear from the body, plus you've had the onslaught of other things.
Your iron supplement probably isn't doing you much good. The human body can only really absorb about 18 mg of supplemental iron a day. Much better to try eating foods that are rich in iron PLUS a lot of other elements, such as antioxidants, the B vitamins, vitamins C, D and E. Lots of calcium and other trace minerals. The closer you can get to a vegetarian diet, the more likely you are to be eating foods that will provide the essential nutrients that have been bleached out of your body by all the treatments.
Also important to make sure you're drinking plenty of fresh pure water. Hydration is key to rebuilding the blood stream and immune system, as well as detoxification of all the by-products of chemo and cancer cell death. Unless you are on a blood thinner, green and black tea are excellent choices for detoxification - get decaf, so that you aren't peeing out all the fluids when you drink. Eat plenty of fruit - an apple a day, any kind of berries (avoid pomegranate if you had hormone positive cancer,) citrus fruits and tomatoes. Avoid bananas - they have way too much sugar in them.
Green leafy veggies, cruciferous veggies, and legumes (whole grains and beans) are vital. Eat as much organic raw fresh foods as you can.
Also make sure you are getting enough essential fatty acids. Many people recommend flax seed oil or fish oil, but I think those need to be used with caution. Flax seed oil is very high in phytoestrogens - if you had a hormone positive cancer, this might not be a good choice. I'm also concerned about fish oil because of the extreme pollution in all of earth's bodies of water. Roasted pumpking seeds are a delicious, nutritious alternative - a handful a day will provide ALL the omega fatty acids an adult needs per day, plus 14 gm plant protein. I have a recipe for roasting green pumpkin seeds on my blog: http://motherearthtreasurechest.blogspot.com/search?q=pumpkin+seeds
There are also articles on the B vitamins, vitamin c, supplements, etc, etc, etc. Please feel to read anything that interests you. Take a look at the recipe for lemon volcano drink (enter that in the blog search box to get that article.) It is really nutricious and an EXCELLENT detoxifier.
Sincerely,
Tre