Read this tip to make your life smarter, better, faster and wiser. LifeTips is the place to go when you need to know about Home Life and other Relationship topics.
Think of it as an exam to study for. If you have to stop and ask "Who?" when your step-family talks to you, it will add distance to your relationship. If instead you know the relatives, and their friends and teachers and co-workers, it'll make a huge difference when you talk. You'll already be "in the circle" and acceptance will be much, much easier.
Keep a list somewhere, and add to it every time you hear about a new person. It'll make remembering them much easier.