Dear Sahara:
Sometimes timing is convenient and sometimes not. I was discovered in feme by a colleague at work while shopping one weekend, and life was never the same.
You have to be comfortable enough to face each day as the sun rises. However, if you try to make it convenient for multiple people it will be like Waiting For Godot. Your loved ones need to know and telling them shows respect for them, but when it's time, it's time . . . no amount of rearranging the circumstances in your life will change that. (It may not be time, but not because of anyone besides you.)
You have made the tough decision about who are (from what you have written), and now you are struggling with consequences because you know and haven't acted. We have all been there for better or worse. There's a dirty little secret buried in that last statement: There is no good time (or bad) to move on, only the time when you are ready and act. But be assured, when you do it won't be the right time, only the time you did so.
This sounds horribly fatalistic, and I won't argue the point. On the other hand: Transitioning is so hard because it is all about doing versus thinking (it's easy to be in our heads about this), and this tears at us because of the unknown. Guess what: It'll still be all unknown until you start taking the steps to transition everyday that moves you along your journey.
If this sounds like I'm being a big ole jerk, then I'll own that because the matter is what it is. I have a great deal of empathy for you, as I sat right on the edge for 3+ months before moving forward one step at a time and waited 30 years before that. This is not to suggest you should not be a loving and forgiving person while you move forward.
In my view, it's the power of love that causes a transition to work. Life is short and then . . . Well, looking back I'm certain all the years I waited will not be viewed by me as, "Wow, wasn't it great I didn't love my family and myself enough to be honest with us during all that time."
For sure I'm not right or wrong here - all that really matters is your life and decisions therein . . . and for that you have my deepest admiration and love.
All the best to you and yours,
Rachel