As a reminder, be sure to properly give content warnings and put sensitive subjects behind proper spoiler tags. It's for the mental health of not just your comrades, but yourself as well.
Here is a screenshot of where to find the spoiler button.
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spoiler
You can't just cold turkey a stim like that, there has to be more to it although Idk what. It's not emotionally immature to be reliant on a stim for comfort or stability though, I still pick my lip and such constantly, and get agitated if I can't.
maturity
I know it can feel like that, but none of this is anything to do with your maturity level. NT society likes infantilising autistic people which is horrible, not fair.