Anna,
Punctuation (and correct grammar and spelling) is important if you want to present a mature, professional look. Dont knock them just yet!

Granted, here you are among friends and family, so there are no worries. To my real point...
Visible trans people have two types of issues; issues they have any control over, and issues they dont. The issues we can't control (family nonacceptance, etc), will affect everyone in some fashion, and may be what holds them from greater success. There is no way to tell unless you eliminate the issues you CAN control (addiction, employment, education, skills, etc). The problem you are seeing, and this is just my personal opinion, is that many of these visible trans people are having many issues, and cannot get to that "peaceful" place that successful (and especially stealth) tranisitoners reach. This is where the issues that remain are life issues, similar to most cis people, with some trans issues added to it. My main point is that they are effectively "normal" to society, and as such are not visible as depressed, struggling trans people. Many of the issues that we all struggle (or fear to) with are often lumped into "can't control" issues because of some variable that is highly challenging, wih a splash of uncontrollable thrown in (ie. Lack of skills and education contribute more to unemployment than discrimination, though discrimination may sometimes rear its head due to one's lack of confidence in their presentation).
These people have their OWN issues. They must deal and cope on their own. And many are very vocal.
Those who have taken care of most of their issues tend to not need to gripe or be visibily depressed. Therefore, they are no longer visible, even if not fully stealth. People use the internet to bitch and vent, so we hear and see it a TON more than those who have good, successful lives.
As such, it is the social circle you are tapped into and pay attention to that matters... You said most are early transitioners, or have a ton to gripe about, and are always unhappy. That sounds like the majority of my high school and college classmates. The ones of my developing years who are most successful and happy tend to rarely post or talk in social media, unless to promote an event they are offering people to attend (ie charity dinner).
Perspective is always important, and i feel that we should take that into account when we see how much of our community is hurting. There are many that are sucfering, yes, but they are INDIVIDUAL PEOPLE and they should be cared for as such, rather than used as an example of how all of us are. I have been quite happy and joyful to have met a large amount of our community who are very much doing well, content or happy with their lot, and doing their part to live fruitful, normal lives.
They are out there - just a very silent minority.