I want to hang my favourite mirror but it's very heavy, so I'm a bit nervous about doing so. Also, it has two metal "loop" hangers in fixed positions, which makes it trickier to get level. What are the key steps, please? I'm always glad to see questions like this since, as easy as it is in the UAE to hire someone to do the job, the sense of accomplishment in doing something yourself is well worth the small effort. This mirror is only slightly more difficult than usual as it has two fixed attachment points.