Your work ethic is your own. Don’t let others bring you down to their level. If anything be a leader by lifting them up. Yeah nobody wants to be taken advantage of, I’ve been there. Quick personal story: my friend got me a job working for his parents business as he can’t keep up with the work load. Turns out he is a lazy bum, job is easy he tells me I have to do all the work. I use my anger constructively. I do all the work without pitching. Get a hundred times better at it than him. Embarrass him in front of his parents. Get everything I want. Basically I run the show. Hopefully your supervisor sees your worth if not find someone who does. Good luck