Hey Lauren, you bring up a really good point that it is not a race and there really is no finish line. In the beginning, there are more than a few really big milestones, but one is never really finished with 'the process'. Life is about transition...and that is not just for trans. CIS folk transition from one phase to the next as well as they age. Their path just looks a little different and often they are completely unaware that it is actually happening.
The main thing, be happy with where you are...even knowing that there is further to go. We have no idea where life will take us, regardless of our chromosomes or hormones or whatever. Being happy with who one is, well if more people could find that sweet spot or nudge a little closer to 'happy', this world would be a pretty chill place indeed!
In the end, being in motion towards being true to one's self is really what any of us are really striving for. There is no timetable or map to where that point is. The fun is in how we navigate to that which we desire and what we learn about ourselves and others that is the 'good stuff'!