Sonori is completely right here, and it feels in bad faith to critique the semantics of their comment rather than the substance of them.
One of the things that is difficult about solarpunk is that there is a huge divide between where we currently are and where we want/need to be. Smaller turbines for a more distributed power grid is a part of a great future to look towards! But it's not the reality of our power demands now, which necessitate larger turbines and more steel production to meet any of our climate goals. Speaking coherently through that divide can really lead to mismatched expectations and miscommunications.
Cis woman here, married to a trans woman, so I'm familiar with both sides of this puberty: it's okay to eat a little more. You're basically a teenager, and your body needs energy now. You are going to go through a fair bit of change and it's important to have the calories needed to do so, especially if you're starting out without much fat in reserve. Your body is going to redistribute where fat accumulates on your body, and people with estrogen tend to have a higher body fat percentage than people with testosterone.
If you have a therapist (gender therapist or otherwise) I'd definitely consult with them about your anxiety around this, since you mentioned the possibility of disordered eating. If it helps, talking to your regular doctor or endocrinologist can give you other professional perspectives on this as well.
Good luck! And take care of yourself ♥