Sorry to hear you're not happy with trt results.
You are right, all ftm's I have spoken to had amazing results. There voice feminisation surgery for mtf's. Maybe you should look if same surgery exists for ftm's that would allow them to attain a more masculinised voice?
Also, voice passing is not always about pitch. It's also about the intonation and pattern of your speech. My non-strained voice is 170hz, slightly below the female average range. I pass just fine in the phone with the right speech pattern and elevated voice.
Finally, have you considered consulting with a speech therapist?