The only ones that actually want me to change my behaviour are the ones that are "responsible" to get me employed (social services, job centers). But honestly, I don't see a lot good coming from that. I wouldn't even know where to start and what to change... on top of that my therapist adviced against this since I might be prone to more "disassociative" behaviour and thus it can go totally wrong.
For me personally, my behaviour is intertwined with interests, hobbies, preferences and all that, and giving all that up isn't the best thing to do in my opinion. Add in there's a lot of stuff where I practically already went past "the point of no return", and for change to be positive, those things should be included, which they can't. So it'll be a giant relapse of sorts over time.
Becoming aware of yourself, I found, doesn't work when you're involved with other people at all. I've spent quite some time pretty much without anything social going on and that's where I at least perceived my behaviour. That included no friends, and pretty much no parents either. Just lock myself up in my room and think about how I go on about things. Though I think it's not for everyone to just leave the house for groceries and pretty much don't talk to anyone for a few months.
I also found that any type of insight towards oneself, should be done in a vacuum. There shouldn't be any interference by others, and especially no negative interference. If anything, these people, especially the ones that want you to change, should be supportive and insightful. And with that, insightful on a generic basis, not on a basis on what THEY want.