Josh Hartnett hopes he has “learned a lot” since his days of early stardom. The 46-year-old actor found fame in the late 1990s and early 2000s as he starred in a string of hit movies like ‘ 40 Days and 40 Nights’ and ‘Pearl Harbor’ but admitted that in those days, he was just trying to “figure it out” as he adjusted to a lifestyle of being known around the world. He told Men’s Health: “I hope I’ve learned a lot since then. It was all just brand-new, very shiny, and very interesting. I look back on it all fondly, but I also see someone just trying to figure it out.” Following the years where he…