WA Festiva wheel nut

[heavywater]

Hey,

Got a 1993 Festiva and it's got a pretty bad growling noise coming from the front end which I'm assuming is CV's or something but the issue is that the centre nut on the front wheels is impossible to get off, I've tried using a breaker bar in both left and right handed direction with all my body weight on it and just can't get it to budge so I can inspect the bearings or CV's. Does anyone have any tips for getting these undone?

Cheers.