My relationship with ASD is that I toiled under a misunderstanding of my capabilities tied to an ASD diagnosis early on. ASD being a spectrum, finding even relevant information towards one particular area over another on the spectrum has always been a challenge. I'm of the opinion that, like ADHD, the diagnostic criteria is very open to interpretation and relatively wide. I would prefer if there were specific neurological, gene, or behavioral markers that were more "NT's don't do this, ASD people do do this".

Just as I may have some level of ADHD, I may have some level of ASD. Treatment methodologies I tried in my 20s, and were tried on me in my teens, were grouped around treatment of either or both of those. Ultimately they were not effective at giving me much better quality of life, whereas trauma-informed methodologies have been, especially in aspects like emotional regulation, and giving reasons for say dissociative episodes which had plagued me for a very long time and now are much more manageable, and also predictable.

To your q's...

I plan some of the things I do, but I don't have the need to plan everything. I do well in planned and unplanned environments. I have traveled to foreign countries solo, gotten into plenty of fun sorts of trouble, etc. When I am needing something emotionally like time alone to recharge, or support, a sudden change in environment like a ton of people coming over suddenly can be jarring or upsetting.

I don't like lying. I feel like its not worth it, and then you also have to remain consistent in the lies. If I needed to get past the gestapo in my car with a trunk full of refugee's, I would probably be able to keep a relatively straight face while lying through my teeth and not thinking another thought about the lie later :P

I use a gadget as long as I have need or want of it. I don't attach to objects more than people, if thats sort of the idea. I don't like throwing away things I've spent a bunch of money on, but I don't hoard.

Hard to say but usually I think I'm pretty obvious about my emotional state - for the most part it matches.

This is probably one of my main things to "infodump". I've been having to study psychology, pharmacology, etc from a damn early age because I was raised alongside the idea that there's something wrong with me. I've spent a very long time trying to help my at the time really distressing depression and anxiety and lack of self worth. I tend to get bored of things after a little bit. I played chess for a while, and then found that the endgames weren't terribly interesting. Same via programming, history, social studies/social justice. Idk, I don't have super singular "special interests", I just like to learn and know a lot about a lot.

I am pretty aware of any tone problems. I think it used to happen that I was somewhat blunt, especially in teen years but its hard to differentiate between that as an ASD thing of "not getting" or simply ignoring how words effect other's emotional states, being raised in an incredibly strict and regimented way, and being undersocialized generally. Its funny because I'm aware I'm sort of replying in writing in a sort of matter of fact tone. If you don't mind, I'd not mind some feedback on my writing style and how it strikes you.