My coworker does not think I work well enough

I work at a warehouse. My role is to barcode item, alarm items and to make double products like deodorants single. So when I get a box of goods I am supposed to pack it up nicely and tape the box. So I have always been doing that. Recently I have been sent to the back to count products, and I have been making little mistakes here and there but when i return to the front to barcode etc the goods I don't tape them because I start to feel tired and very hot from counting at the back. Today my indian co worker will open his mouth and ask me "how long have I been there?" So I said a month and two weeks, he will then say I am not focused because I keep calling him to tape the box and print big barcodes. Now I was angry when he said that because from what i have heard his supervisor calls and ask him about how we work. Also some of the indian coworkers here ask me for my number and *** but I have never given it to them. And there is one indian worker who touches my hip area and he asked me if I was a virgin, i asked him to stop touching me and he won't so the next time he touches me I am gonna report him. I did not want to report him the first time because I thought I was over reacting or maybe it was a mistake...but now when I sit and think I realized it was on purpose. Today he touched me on my back. I cant wait for college to reopen cause I can't take it anymore, this work place is toxic and my body can't take it anymore.