Dear Megan,
None of us are super strong. Most of have fought every day with similar thoughts. You are as strong as any of us, you just haven't accepted that as yet.
Are you seeing a therapist? I presume you are to be on AA, but availability varies from country to country. I'm in Australia and can only obtain medications with a medical script.
You should talk through these issues with your therapist.
For some of your questions, like how to know if you are TG?
I have absolutely no doubt that no one wants to be TG. My gender is female I have a male body,the two conflict. I want to be one our the other. But my brain tells me I am female so I want the body to match the brain.
I remember explaining to my family. "Do you honestly think I'm doing this for fun? That I'm doing this to upset you? Do you honestly think I'm doing this so that people can ridicule me? Do you honestly think I'm doing this for any reason except that I have to to be me." I then went on, "How would you feel if you found that your gender and your body didn't match?" "What would you do?"
We have to ask ourselves the same questions. We of all people have to be totally honest with ourselves. It takes time but we have to think through our emotions and were we want to be in life. What can we live with, what can't we. Some people are content cross dressing either often or on occasion. Some are homosexual and want to have and are very happy with same gender relationships. Some of us are labelled as TG, we are physically the wrong gender. In my logic, and I don't expect or want people to agree with me (I simply don't care). I am not homosexual, I am heterosexual, because I like guys; I'm female, a heterosexual relationship is defined as opposite genders desiring each other.
What I present as physically, at the moment is just what I present as. What are humans? If a person is born without arms, legs, whatever are they human? If a person is born without any intellectual capacity are they human? Damn right they are and their needs and care have to be provided for. I was born with a healthy but wrong body. I need understanding and care.
How does this answer your questions? There is nothing wrong with you and your thoughts. You need to think about what is important to you. Gender dismorphia does not go away. It cannot be 'cured' because it is not a disease.
There is a particularly stupid song going around at the moment. It starts of "I wish I was born a billionaire so badly...".
Why? All the reasons are selfish. I wish people like you and me and the many people I love and support at Susan's (including the Queen Bee

) were born into happiness and love and normality. We weren't. So we have to follow through with what we have.
Sorry if I have been negative, or didn't cast the magic wand.
We have to deal with what we have been dealt
Hugs
Cindy