As for failing your family, I would say it is the other way around.

They are not the ones to sit in judgment of you, that is in the Goddess’s or Gods hands.

I have only my own life experiences, and do not know yours…. Set up a time to talk with your parent(s) , maybe not at home, try to find some neutral ground. And bring some information with you, not just links to web sites, some —actual— printed books and magazine articles. A local library will be ideal since you are supposed to use quiet voices there. And, they will have access to all kinds of info. Pick out some books together and take them home.

Remember that both of you need to be calm, not overly emo, but willing to listen and have an open conversation. You need —two— willing participants to effectively communicate.

No specific sites come to mind but why not sit down with them and (together) go visit some “Parent of Trans” discussion groups? They might be more likely to listen to other adults instead of a room full of younger people. Other Trans peoples families have already gone through what you are going through, so they are a great resource,

Remember that they just don’t understand, so help them to understand! It will take time, love and patience… lots of patience.

Sending you hugs, Iris