1. Sometimes you are going to feel like an outsider in your own “family.” Even if your step kids welcome you with open arms. Even if the ex likes you. You will feel left out when your husband jokes about being a parent in a conversation with friends and when he goes to school functions without you. You will get knots in your stomach every time you sit down at the dinner table, dreading what awkward or inappropriate comment is going to come out of your stepchild’s mouth this time. You will feel insecure when they laugh about old memories, because up until now, none of them involve you and…