Yes sweetheart, no one will ever understand you completely. In fact, people will always understand you in their limited capacity of "their" understanding. Even your parents, siblings, cousins, friends, classmates, office colleagues, spouse... absolutely no one can understand you the way you want them to understand you.
But in this chaos,
You can find one person who is "ready" to understand you. That's a privilege. Trust me, you will find that one person - that person can even turn out to be your in-law (Imagine that happening!). Till then, no point in struggling and expecting anyone to know you and understand you and say things to you the way you want them to. Just accept it that you are unique and complex and beautiful creation. Focus on understanding the uniqueness of yourself. It will help you in expressing yourself better to that person who is "ready" to understand you.
Keep Loving! Write soon!