So my question is - How much winning is enough for you in a day. You're answer should be based on your capital not on your multiplier. Also how much is it for losing?
For a lot of people, it's never enough. For some, as long as they've got some money left, they're still going to be sat playing there till they probably lose all they've got. It just is never enough.
It gets worse when we're enjoying a winning streak. We're pumped up thinking we could continue riding on the winning streak and make some some money but when it inevitably starts coming down, the urge to chase our losses kicks in. It's simply good to have a budgeted amount and when that's spent, it would be wise to stop.