Prince Harryhas been traveling the world without Meghan Markle, and his solo trips marks a new stage in the couple’s relationship and professional lives. “Ever since moving to America, it’s taken Harry a long time to feel comfortable and confident enough to go out on his own and he is really enjoying this new way of life,” an insider told an outlet. “Before he always used Meghan as a bit of a security blanket as he felt quite lost in his new role, which was completely different to his old royal life and what he had been used to,” the source explained. When the Sussexes first left the U.K., the…