If I only ever get to teach my child three things, they will be:
1) You are infinitely, incomparably and gigantically loved, exactly as you are. No matter what you do, no matter where you go, and no matter how you feel about it.
2) Have good friends. It will take a long time, and a number of trials (I hope they are few!) before you realise who these people truly are. I hope that journey is easy for you, and I hope that you choose wisely.
3) You do not know everything. Neither do I. Always be open to learning.