Well I always tell people to match their training with their eating.
For some, that means one set of tricep kick backs.
For me to tell you how often to train, I would need to know what you eat every day, and how hard you push in the gym. Most have a careless disregard for recovery. Foolish.
Like I've stated in my newsletters, the reason I use Max as an example is, he's the only lifter I have control over his lifting/eating/recovery.
I could simply say lift twice a day like Max without any consideration to your diet. Or I could say only train twice a week, and realise you put zero effort into your lifting.
I generally play it safe and tell people to train every other day if I dont have all the information.
Sorry I couldnt be more helpful, but most internet experts never consider the 165 hours a lifter spends out of the gym per week and give out info regardless.
If you give me more info I will try and be more precise with my info.