I think it's really great that you are entrusting your personal journey to your close friends (?) and taking it slow.
Unfortunately, the world has a long way to go in acceptance, and your truth is very precious and personal - as wonderful as it might be to be "out" to the universe, it is not an ideal universe to come out to (yet?). This is my experience anyway (43, lesbian).
Trust yourself and your instincts, and only share with those whom you know will treat your truth with the honour it deserves. There is absolutely no hurry, especially if you feel any danger around your workplace.
If you think it might help, check in with QLife.org.au where you can find some supportive people and places.
And keep talking here as well.
We are here for you and are in your corner.