Hi Janina,Two weeks isn't long,so don't stress too much.In the beginning the exercises do hurt a lot,but just keep doing them,as well as you can.The exercise that Deanne is talking about,is the one exercise that I believe got my arm back to almost how it was before.If you don't know it,it's really easy.Stand side on to a wall.walk your fingers up the wall,as high as you can;hold and count to 5,then walk them back down.I still do this exercise many times a day.It makes it easier if you do it in the shower,with the hot water running on your back.One other little tip,is to shrug your shoulders 10 or 12 times,as a warm up,before you start your exercises.Take care Janina. Cheers.xoxox. Robyn