Hi,
I think the term "second-best" is a bit irritating. It has a bit other qualities than the so-called best direction but sleeping in this direction is a very good option! I find that curtains are very good to block mirrors from view. And if you can shut out the light from the window at night you should be fine, too. I would worry too much about placing the bed at an angle. Maybe you can put something solid there later. Your sleeping direction is too important. Change the bed first - it does not have to "perfect"
All the best,
Astrid
