Am I making a mistake?

If I lived in a vacuum, I wouldn't question it at all. I cannot see myself continuing as a man. I have my whole transition planned out, at least the phases and a lot of the steps therein. I have a definite goal, there's a lot of changes i have to make, a lot of work, requiring a lot of dedication that I absolutely have...

The people, though... my partner is supportive, there's no doubt, but this is a lot for her. She wasn't expecting to be with a woman. We agreed to take things one day at a time, that nothing was happening overnight. But ultimately I know she wants to be with a man, or I need to be really attractive as a woman. It's a lot of pressure, but we've been together a LONG time and I'm not too worried about her. It just is sorta... eh... not what I want to deal with while going through this. I almost want to break up, but I depend on her too much for support, emotionally and financially.

Then there's the other people in my life.. I told my siblings, one responded and was supportive, then I didn't hear from them since. That was two weeks ago. The other just never responded.

I told a close friend, two other semi close friends, and two cousins.. again, everybody responded supportively, but nobody has reached out to me on their own since.

A lot of this is my fault. I've always been there for prior when they needed me, but nobody has ever really needed me that badly, or I should say nobody really has reached out on their own besides inviting me to something they know I'm not gonna go to, like just a gesture of goodwill. It's like none of these people are really that close to me. There's really only my partner, and we have a lot of differences...

So I'm just very alone, which makes it seem like I AM in a vacuum, and therefore I shouldn't really give a damn.. but I'm not gonna kid myself.. I really do need the support.

I haven't been in therapy in years. I know i need to do that. But my question is this: at what point does the doubt start to outweigh the determination?

I know what I want. I have no inclination to back down. I have zero desire to live the rest of my life as a man and every desire to feminize my entire body. I can't imagine not doing it at this point.

Am I'm being foolish?