More like 20 years, but Italy does not have the hard culture of "8 years and GTFO" that is so ingrained in the US. There are no term limits for Prime Ministers, election losers are not required to step down from party-leadership roles, and even the unofficial limits for President (which is mostly a ceremonial role) reelections, have recently been broken.
It is one of the great achievements of US democracy, although one has to question how much meaningful change can realistically be achieved in a massive country with little more than 7 years available (because re-election campaigns and lame-duck status in practice will consume a full year). For all the drama that they generate and the feeling of electoral power, strict term limits are a very conservative measure. On the other hand, you're guaranteed Trump will be gone by January 2025 at worst.
Trump has tapped in to something and I fear it's going to work quite well.