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.
Exercise, taking a break from the task at hand as well as maintaining healthy eating and sleeping patterns all help in improving your mood, anxiety and stress. By alleviating some of these roadblocks, being motivated can become easier. For long term improvement of motivation issues, try to identify the root cause.