Recently about a week or two ago I returned to work since I had dislocated my knee and had to recover. Before I dislocated my knee I was having problems with my shift leads and sm because I was constantly being put on solo drive thru all day every single shift I had. I let it be known that drive thru was my most hated position but didn't mind being on drive thru hear and there just as long as I get moved around often. So when they heard that they tried putting me on cs for like 10-30 mins after I clock on but then after that it would be solo drive thru all shift. The day my knee popped out I they said they would move me around. Now ever since I've been back it's been solo drive thru all day and I'm at a high volume store that gets rushed very often. Despite that my manager will barely ever schedule enough people to handle the rushes we get. I'm at the point to where I'm going to walk in and say if I have to be put on drive thru I will not work today and head back home. I've brought up me hating being put on drive thru every shift to my manager before and she said that she would talk to shifts. I've also talked to the shifts and they all say that they will try to get me off but that usually means maybe being put off of drive thru on the last 10 mins of my shift. Im so fucking pissed that I keep being ignored like this which makes it harder to try and seem happy towards the customers that come through cause I get pissed that they keep doing it. Does anyone know if there is any policy that states that baristas must be moved around?

Edit: thanks to my manager not scheduling enough people I often have to do more than drive thru. I usually have to include taking orders up front, help bar out, and then make stuff like sweet cream, refresher bases, or whips