Hello! Haven't been in the actual online community very long but I've been aware of and actively engaging with my alterhumanity for 10 years at this point. To answer some questions!
1. I still struggle a lot with my alterhumanity namely in that I feel like I'm acting too human a lot of times! While I believe myself to be nonhuman down to a physical level, the fact that I still have to walk around mimicking a human routine and doing human actions can be pretty distressing. I catch myself feeling and thinking "I'm not even a human I shouldn't have to do this I could just run away right now." quite often, but less so than I did when I was in my teens. Especially early teens.
There is also an ever present worry that I've made it all up even though I've been reminded again and again by everything about my life that I absolutely am not. I don't know if it will go away, but it's gotten much easier to ignore.
2. This is more of an Adult Money Can Be Used For Goods And Services type deal but I got a human sized dog bed and set myself up a den with a nest inside of it beneath my bed so that I have a comfortable, dark, and cozy place to relax and hide away when I'm feeling stressed out and unable to function around others. My roommate very much so understands as he is a dog in some way, and so he's very supportive overall of my lack of human behavior and need for space.
3. Don't worry about it. It's very basic advice but it's the one I stick to the most closely. Constant worry and examination of your own identity will only lead to more doubt and distress in the long run. While I do participate in a bit of discourse from time to time and generally encourage people to use the correct definitions and terminology, I am not the identity and microlabel police. If that's what works for you, good on you, but please don't feel pressured to attempt to label and explain away every aspect of your identity. Also, Write. Please write. I already have a whole post detailing this but please write about your experiences. We lose out on hearing the voices of our whole community if they refuse to speak.
4. My neocities holds all my essays I think are relevant and some that are outdated but I keep up for posterity and archival reasons. I actively encourage anyone who may read this to keep a Neocities, Dreamwidth, Strawpage, Carrd.co, etc. About themselves.
5. In a way I feel the community now is both more open and less policed/harshly restrictive towards new members. I remember the 2000-2010s Period in which every new member was holding up Thorn of Therian Territory as their primary source of advice and the older community had reactively closed off in response to the very unflattering and rude portrayal of Naia Ōkami in the documentary she featured in as well as the rise of "therian" documentaries that depicted our community as being weird and cringe which in turn encouraged folks on tumblr to begin making otherkin and therian cringe posts. (Take this with a grain of salt. I was born in the early 2000s. I mostly experienced the 2010s aspect of this which had a huge uptick in bullying over youtube.)
We were policing the community out of a need to protect our own. And while there is certainly less now, I think we may fall back into a level of gatekeeping with the uptick of bullying on tiktok and us being present in the news now. I don't think we'll ever be allowed the same level of privacy and secrecy that we once had again, but I fear we may repeat ourselves out of perceived necessity.
I enjoy, genuinely, how open this community is. But between the misuse of terminology that's been around for ages, the attempted re-coining of some terms by certain individuals or the coining of new terms for experiences we already have words for (ie. The whole "Faunaluna" situation that went down on Tiktok late last year/earlier this year.) or the rise in folks claiming others are "larping" their alterhumanity, I think we may backslide into restrictive attitudes again if we cannot handle these with grace.
6. All that was exciting will eventually become mundane. I did feel disappointment and disconnect after the "wow" of discovering my alterhumanity wore off, but through keeping up with myself(selves) and engaging with my nonhumanity in little ways each day I've been able to keep that connection. Through how I dress, speak, act, eat, make art, etc. This is how I stay connected.
I also remind myself (and others) that it is well ant truly ok to feel disconnected some days. It will happen. Be gentle and kind to yourself.
7. I think from our newest generation I've rediscovered a bit of the spark I used to have back around when I was a similar age. Which again, not very long ago, but so much has changed. The emphasis on gear and masks and quads especially, and I do love the crafty part of our community.
My biggest takeaway really has been freedom of self expression. I think the newest generation of alterhumans is spectacular at being individuals and displaying that through everything they do and every space they occupy. And I really do think we can take their propensity towards individuality and adopt it for ourselves.