Break the Matrix

I've had two extractions during my time having bracers, what bugs me out is the permanent retainer that I'm supposedly stuck with for life now.
My question is, have anyone of you removed this permanent retainer since you started practicing correct oral posture? Have you had any negative shifting? Experiences, Please tell!

I really want to be metal free in my mouth, I dislike it alot because I love to keep a fresh mouth and flossing is abit of a hassle + sometimes food gets stuck up in there that can't be removed by a simple tongue swipe haha..

(I've had the retainer for 2 years now)