Veganism is sacrosanct to me. I've been veg for ~20 years and take pride in knowing fellow vegans, whom I regard as family. It is an ethically superior lifestyle and necessary for our planet to thrive. If I could support myself doing nothing but being a vegan missionary I probably would.
Some recommendations:
Dr. Fuhrman's supplements for DHA and the women's multivitamin.
Get everything as organic and minimally-processed as you can.
Fully raw-organic is highly cleansing, but difficult to get enough calories.
Try juicing. Carrots and parsley are potent sources of vitamins A and K respectively.
You need at least some uncooked fruits / veggies, or supplemental enzymes.
Follow Moby on instagram. He's a massive inspiration.
Hemp seeds are an ideal source of protein.
Ayurvedic food combining is really helpful - it's amazing how much the ancients knew.
Figure out if any foods disagree with you so you can avoid them and not blame the lifestyle.
Last but not least, do it for ethical reasons. Those who go vegan only for health generally revert. Those who do so out of compassion almost never do. (I blacklisted dairy, for instance, after I learned it requires a lifetime of rape for every dairy cow, along with separation from their calf.)
Years prior to transition, I had a long, laboured "coming out" as simply vegetarian, which led to being constantly berated by family and friends for years on end. Call me Socrates. I am the gadfly.