On the side of the shower opening that will support the door, hold a jamb piece against the wall so that its lower end fits into the base track. Without moving the track, use a 4-foot level to adjust the jamb until it's plumb. Stick a pencil through the jamb's screw holes to mark the wall.
I was asked to answer, so I'll give this my best shot, please know that I do not have any specialized or trained medical knowledge, only practical experience from Ashtanga yoga and meditation. So, yes, walking does reduce anxiety. 1.
Although walking is a good means of exercise, the problem is the unhealthy things a fast-moving society makes people do. People can test their pace of life on his website, quirkology (see Internet links on the right), and he suggests those who generally find it difficult to wait, queue or sit still can ease their anxiety by listening to music or chatting.