Welcome!
Allow me to give you a great big virtual hug. You are one of the special ones who accept their children for who they are. Many transgender people are not so fortunate to have such parents, myself included. To be fair to my mother, being a single mom in the late 60's was not the best time for trans acceptance.
We do not have all the answers, but I can assure you those that can be answered will be. We are still people of all races, religions, ages, and backgrounds, so do not be too surprised if what is true for one may be different for another. Every trans persons journey is a little different, so the reality is that questions may not have a single answer.
Reading "Understanding Transgender Diversity" by Claire Winter may also assist you and others who wish to in understanding. If counselling is an option, that too can be of assistance and not just for you. Your daughter will have times where they will need the insight of an impartial party to support where needed and motivate when appropriate.
In a way, you are even more special than transgender people. There are many more transgender people than there are accepting parents.
A hug can be the difference between a day, and a great day. It simultaneously tells the person you are hugging that you see them, you accept them, and you support them. It requires no speech, yet says so much.
Thank you for being here, and I am glad you found Susan's Place.
Ricki