Hi Metora,
The voice would have to be THE hardest thing to get right in the whole transition thing. Some it comes easy, perhaps they are more predisposition to it; others works for years on it. At the end of the day it really comes down to practice, practice, practice. Oh, by the way, did I mention practice?
Considering we utter something like over 10,000 words per day, there's no shortage of practice time.
Just be aware of is the mechanics of hearing. Quite a complex thing. I'll try to simplify it. When we speak, our brain generates the speech and actively monitors it to ensure it was the right canternation of words. The brain uses two primary forms of monitoring. 1. the auditory ear canal and 2. physical bone resonance of the skull. Both methods combined create a specific vocal timbre,it recognises as you. Replay your voice from a recording medium will not generate the appropriate vocal timbre that the brain will recognise as you. Although there is a similarity between the two (live and recorded) the brian is somewhat confused as to who this recorded person is. Hence you reject what you hear, as being you.
The above aside. In the initial stages of voice training, over do the falsetto bit. Force the voice up into a near falsetto or falsetto range and then slowly lower it to a frequency you're happy with. Should be just below falsetto. Eventually the voice will go there automatically. This will takes months of practice.
Now get going and do your practice.
Huggs
Catherine