Doesn't seem like you can look to your family for encouragement. Well then don't. Look to them as family only without encouragement. Get your encouragement from another important person in your life if you can. Then, you are free to spend your time with your family in a more relaxed manner without feeling upset that they won't encourage you. Cause you're not relying on them for encouragement. Because you already know anyways that they won't give you any encouragement. And you can just accept your mom/family as they are NSA, unconditionally. Love them because you are family.