I would just take it slow, easing into one step at a time. For me cutting out eggs and dairy is the easy part. The hard part is looking for mints, gums, and then household products that are cruelty free. I took it slow, buying vegan cleaning products one at a time each time I went to the grocery store. About six months ago I started ordering Veganu soap from veganessentials.com, a site I found that sponsors this one. Then I got a vegan belt, then I got non-leather shoes to work in. Slowly but surely my life is becoming veganized. Also, I've switched all the supplements I take to one with vegetarian capsules and from vegetarian sources. But I didn't throw away my vitamins and Valarian, I used them up and replaced them as the time came.
I found this approach easier than just throwing everything out and starting all at once and I will probably never label myself "vegan", but I feel every little bit helps.
It's interesting what you find when you read lables. I found out a stiry fry sauce I use has shrimp paste in it and some pasta sauce had cheese in it. Also, honey is everywhere, but I'm a little more relaxed about that. Again, for these finer details, I slowly replaced what I ate without getting all anal and bent out of shape.
I guess because I'm older, I don't have any programs with omni's or my family. I simply matter of factly state I'm a vegetarian if it comes up. I decline to get defensive, because it's my life. Over the years people have gotten used to it, and it's just one facet of my personality that is me.