How do I Call awakeFromNib in mainViewController.m

customCell.m

    - (void)awakeFromNib
    {
        self.label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 50, 200)];
        [self.label setText:@"This is a label"];
        [self.myView addSubview:self.label];
    
        NSLog(@"%f", self.label.frame.size.height);  // Results: 200.0000
    }
    
mainViewController.m
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        // Do any additional setup after loading the view.
    
        customCell *cellVC = [[cutsomCell alloc] init];
    
        NSLog(@"%f, %f", cellVC.label.frame.size.height); // Results: 0.0000
    }