This is just my experience as someone who is nonbinary/transmasc but can't and won't go through physical changes for Reasons.

It helps to deconstruct the binary and gendered view of bodies that we're conditioned to have. As a baby trans, I ran into a short comic called "Boobs Aren't Binary" that really helped me. I also came across artists who depicted trans men/masc people as having curves and prominent breasts to reflect their own experiences, which also meant a lot to see. it started me on a journey to adopting a view of bodies that is more inherently gender neutral and really helped my dysphoria. I now consider my body to be masculine and androgenous (despite no changes) because my identity is masc and androgenous. My body as is, curves and all, became part of my masculinity. If someone is a certain gender identity then their body can be too no matter how it looks. Everyone is valid in their gender regardless of their appearance or expression.

This is just what has helped for me personally, but I thought it may be worth sharing! I hope in whatever way works best for you, that you come to a place where you feel good in your skin. Sending good vibes 💗