Envy is relative. I know a girl who transitioned young, and she wishes she waited until she was older..... while I, of course, wish I did it when I was younger. We had a great chat of all the differences...... and we both got to see a different view point.
Everyone has that envy, in some form. The "wishes" of what we could have done, could have been, etc. It's unfortunately, always a comparison. If we stop comparing ourselves to others, or others to us, it will naturally go away.
It's weird, because we fight to be the gender we wish to be..... not knowing what it would be like. Then, when we're there, we have to learn about ourselves all over again, in a sense. Then, a different set of "wishes" comes in.
Honestly, it comes down to loving and accepting ourselves as we are, whatever state of transition we are in, and letting go of the other stuff. And remember, while there will always be people who are younger, who can easily afford transition, who are prettier (or more handsome), who's friends or work accept them more........ There will also be those who have less than us. We are to them, what they aspire to be.
Acceptance, and letting go, are keys to peace.
Come back from a long hiatus from here, and post deep thoughts......... it's just so me, isn't it?