When I dedicated, I was younger and didn't completely realize that I might change my mind. So please understand and don't shame me or anything

What is the reverse ritual?? I would also like to know to undo the dedication please, and yes I'm sure I want to undo it

I had dedicated about 2 yrs ago and I've decided I want to undo it. I'm not going back to Christianity or basically any religion, so don't think that. I've heard that the dedication is permanent, but is there some sort of way to undo it? And pls give actual answers, don't just say I'll regret it...