"I still feel like I'm trying to make it. It's hard to shed the struggling actor thing"

Mark Ruffalo's quote talks to the difficulty of achieving success in the show business. Regardless of his success, Ruffalo still feels like he is trying to make it. This recommends that he is still making every effort to reach a greater level of success, or that he is still working hard to keep his current level of success. The phrase "struggling star thing" indicates that Ruffalo is still dealing with the same obstacles that he dealt with when he was starting out in the market. He is still trying to prove himself and make a name for himself, and he is still dealing with the exact same obstacles that he dealt with when he was very first starting. Ruffalo's quote speaks with the trouble of attaining success in the entertainment industry, and the requirement to continuously work hard to keep it. It likewise speaks with the value of strength and perseverance in the face of adversity.