how do i properly train my voice ?

In general I'd suggest either:

  • Seeing a speech therapist who specializes in trans voice. In some places this will be covered by insurance.
  • Getting EVA MtF for iOS, buying all the lessons and then practicing 15 to 30 min a day for a few months.

I suggest these things because, while developing a feminnine voice does come easily to some people, for many other people it's challenging, complicated and subtle. And, as you point out, it's very possible to over practice and hurt your vocal cords or to reinforce bad habits.

EVA MtF is great for the $$ and is made by a trans-specialized speech therapist. It's not as good as seeing someone face-to-face but is SO much better than going by random videos or advice from the internet! It may seem expensive, but compared to buying even a single lesson with a speech therapist is very cheap. If you don't have an iOS device, consider buying a cheap used one!

/r/transvoice Thread