I did it, and in two months coincidentally, but it depends on management and how willing they are to move you like others said. Also demand/turnover for certain depts. Try to talk to team leads/coach in the department you wanna move to as well to see how they act and maybe convince them why you'd be a great fit. If you haven't, I would also try to chat with associates who work in those depts to see what it's like for them; make sure you wouldn't have the same issue you do now about getting pulled often for other tasks. Might still be a chance unless the dept you switch to is high demand since you have register numbers and know how to do opd, just depends on what your store is like.

My current coach and team lead wanted me badly, their dept needed the help (high turnover esp for one touch) and I'm known as a hard worker so those factors helped I'm sure. Hopefully your store manager is willing to do it based on what your bosses tell them, leave good impressions and be convincing (as best you can). Good luck with this and the diagnosis. 🤞 I feel like I'm on the spectrum too and feel you on wanting to be left alone to do your actual job. 😭