Jon Gosselin is determined to get back in shape and drop 60 pounds. Though the reality star’s weight has yo-yoed over the years — he was around 255 pounds at his heaviest — he’s setting a goal of being 175 pounds. “I just got complacent with my health,” he explained in a new interview of how his weight creeped up to 235 after being at 200 a few years ago. “I’m in a comfortable relationship,” the dad-of-eight noted. “I love my girlfriend, Stephanie. We just eat whatever we want, do whatever.” To drop the 60 pounds, Gosselin is turning to Dan Holtz, founder of the Beverly Hills Rejuvenation Cent…