Can you fix leaning furniture?

So my apartment floors aren’t level. When I first moved in it drove me crazy because I could just see the tv lean foward. Well I got used to that. I just got me a new couch and it looks so obvious!!! Is there anything I can do to make it look level? I’m not sure if it’s the couch, it’s a nice couch and I love it but it was used. I just know my floors aren’t level.