Bette Midler always knew she “was just going to make” in showbiz. The ‘Beaches’ star had a “compulsion” to become a legend as she knew she wasn’t cut out for anything but performing after trying out other careers like working in retail before she shot to fame. The 78-year-old actress told The Hollywood Reporter: “This kind of compulsion, a determination. I was just going to make it no matter what. In my defence, I couldn’t do anything else. I’d had jobs before and had always failed at them. When I was a salesgirl, I was completely bewildered when someone came in to return something. “I wouldn’…