I work at Walmart. could I sue Walmart for emotional trauma?

I work at walmart in the apparel department. My managers have "couched" me to to point of making me ball my eyes out. They claim that I don't get what is told to get done done.. which is bull crap cause i always get it done. I am super organized and I size all the the clothes fold them and everything looks good when i leave.. so i left at 630pm the other day and it looked good and of course women are messy and they messed up the swimsuits and my manager comes in at 8am the next day and looked and was like this stuff didn't get done so they called me in and said she said i didn't do it.. are u serious that was what more than 10 hours agO? of course it doesn't look good.. so blah blah they continue to make me ball my eyes out and pretty much yell at me and im 19 and a hard hard worker i am just so frustrated she called me a lier because i told her that i thought something she asked about was about once of the managers and shes like she didn't work that day and i was like oh i thought it was her idk then.. and she is like stop lieing... omg i didn't lie if i lied i would knowingly tell u it was her when i knew it wasn't and i did not do that and shes like you still lied.. omg seriously.. i just really have so much emotional trauma .. i cried all day during work today and they have done this like 3 times not just today.. and they keep claiming im being lazy and im not.. its so rude to me and frustrating cause i work soooo hard and nothing i do is good enough nothing. i should just be a stripper haha.. suggestions? or do i need to get more in depth?