Not admitting a gambling addition challenge only helps makes the gambler addict situation worse. However, getting to lose much more than one wins isn't really a thing of addiction though, because you can be gambling responsibly and still be making so much losses with predictions.
We must understand that there are gambler who aren't aware of addiction. So I'm not surprised if some gamblers don't admit that they are addicted. That's why the role of family members are needed here. They are the people who can remind the addicts!
Yep, losing more isn't a sign of addiction. If we aren't lucky, we must experience losing more. This is also the reason that many gamblers prefer to gamble for fun. It is the way to deal with experiencing losses. Set the limits is also the way to avoid severe losses.
What really matters in a win or losing streaks situations is staying disciplined and gambling responsibly.
The point is to stick with our plans and never think to break our limits (funds, time). If we are disciplined to do these, we can avoid gambling in an excessive way.