Hello, I have an issue where my xbox 360 profile is too big from doing the unlock all Achivements ability, and i wish to undo that. I do not have a back up from this and need help with how i go about removing all the achivements, and avatar items I dont want on there. That could be the reason its taking up so much space but I need a second opinion and help.
this is wand trainer forums. i suggest going to xbox forums for this request.
They’re in the right place as an Xbox Horizon user, which Wand/WeMod provides. 
Xbox/Microsoft will reset their gamer score if they admit to using external software to unlock achievements and avatars on the console. For the first offence, anyway; the second offence is usually a ban. 
Unfortunately, I am a Playstation person, so I can’t help here.
What would be my next step to take?
Hang tight and see if an Xbox 360 gamer using the Horizon tool can come along to assist—hopefully someone like @Chris or @SteveWonda is still around.
Just a heads-up that the 360 section is pretty quiet these days compared to the PC boards. Given that the console turned 20 recently (and the average lifespan of a console is 11 years, unless very well looked after or repaired/refurbished), active 360 players are a bit of a rare breed, but hopefully one of them is still around and can lend a hand soon.
Okay
Just curious, why do you think it is too big? I had multiple profiles with all achievements, all clothing items, etc., and never had an issue. Unfortunately, once you’ve connected to XBL with the account, you cannot undo it.