If I play a game and I lost, I can take the disappointment but when someone else knows about the loss, I always feel like they'll tell others and that makes me uncomfortable. I would rather gamble online on my mobile phone than follow someone to casino to play games.
I don't know why some people cannot just be independent in their way of gambling, that each time they are going to the casinos they have to go together with their friends, though it's not something bad to always have a company of friends gambling together but it will get to a stage we may want to have some privacy about our livestyle in gambling when we would have also consider the influence we get through this friends we have.
You can't blame other gamblers who play gambling either. I remembered that before I gambled, during those times I always lost, and then the person next to me who also gambled always won. He rarely loses, which is the opposite of me, who always loses when he bets.
So what I did was, because I could see that he always hit even when he bet, I imitated where he bet, and after that, I gradually recovered my loss, as if that day I said I could only recover my loss because I hated it, and before I hated gambling, I grew even more because that day the person I was following who bet was really lucky.
I think it goes back to each gambler, if indeed they always want to be accompanied by several friends to go to the casino it is not a problem, because maybe he really wants to have fun there with many friends, gambling while laughing maybe that's the goal in order to relieve fatigue from some defeats maybe. Some of them always want to keep their activities private and some of them are so dense with their friends that they are always together wherever they go, maybe like that. And well what you experienced I also really experienced it haha, on the other hand it is not wrong if we go to the casino with some friends and play together, but what makes us a little annoyed is when our friends always win but we always lose, it is very annoying with some ridicule from our friends because of our defeat there.
Maybe it's a pretty good way to recover your losses by copying what your friends do there, if it's useful and effective then go ahead. But other than that, I wouldn't trust your friend's method too much, I wouldn't fully and clearly say that there you also got lucky friends who have managed to recover your defeat slowly, I think you are really lucky.