Well to start, I'm on my 5th day as a loader. I'm doing good, but I think I have been trying to hard. They keep trying to push me hard, tell my im kicking ass then the next minute tell me I need to go faster. They're trying to kill me. They get even when i go to get a drink and tell me to hurry. The pt supervisors aren't all that old and then they're calling me still just a baby for being 18yrs old. They all look only 3-4 yrs older than me. Supervisor was with me for the first 2 days then they left me saying im awesome at it and dont need any help. They keep switching me to different loads and the load charts they gave are all wrong for the loads they have me in. Id like to memorize what zips go where.The supe that was with me apparently took over the other supes new hire so then they came over to me. Some girl and this other starts yelling at me. Then say your doing fine and then they start yelling again saying my walls suck or im going to slow. They put me in a high volume load and said i really shouldn't be in this on my first week. Although im doing pretty good. Told me they wanted to see how much i can do....The chute was getting all backed up and i was frustrated as can be. I averaged 316 packages per/hr yesterday. Then they still tell me I need to go faster. I can't go much faster.... Even trying to get 300/hr is hard for me. Some of the feeder drivers told me just to go at a steady pace and ignore them yelling at you.