Hi Rosalie
I've had a brief look through your posts, so I understand some of the challenges you are facing.
If you are not talking to a therapist about your current issues, I agree with Grace and strongly recommend that you do find one, perferably female, to work through some of this stuff.
Your photo shows a normal person, and I would urge you not to be critical about your body. We have what we have - it's not perfect, but in 99% of cases our bodies are not a show-stopper: we are our own worst show-stoppers! Get out of your room and onto the metro and into the city, and you'll see such a range of shapes and sizes of women, and you almost certainly will fit inside the range of female bodies. It's pointless wishing we had supermodel bodies, and guess what - we're in exactly the same boat as virtually all cis women on this subject.
From looking at your posts I think you are perhaps analysing the negatives too much. If people already misgender you for your voice, hell, this is great - it's a massive problem for so many of our trans sisters, and you're already past it! So focus on the positives, and work to reduce the negatives. We all have trouble with inertia, but once you get moving in the right direction you'll be astonished at what miracles you can achieve.
Believing in yourself is the fundamental point, and if you can put to one side any types of imagined criticisms from society at large you'll advance.
Does some of this make sense? I hope it does.
Hugs
Julia