According to youtube there's different ways, the iron method is the one more accessible to me since I could do it by myself.
I could surely try on the cards I got a double for, it looks very risky though, some of these laminated cards are over 20 years old. I thought about submitting to CGC because I read they accept cards in other languages and it seems CGC is globally recognized. Most of my cards are from the Italian version like the one above, I don't think other companies will grade these cards but I will try writing some email today.
Update: lamination removal attempt failed.