I gamble alone, not because I prefer it that way precisely, but because of pure chance. In fact, some of my friends love betting on sports (on sports that I don't like, unfortunately) or gamble but in platforms or physical locations I don't like. So, although I would like to have some friends I could talk to about my gambling experiences, the most similar experience I find it in this forum.
I am the same as you. I gamble alone. Because I like to enjoy casino games but my friends like sports betting so I don't have any discussion with them about gambling. And when I lose money in gambling my friends scold me. They say that sports betting is easy and you can win easily there why do I play casino games which are very risky. And I don't tell them anything. I enjoy casino games alone. And the reason is that casino games can be played anytime and are very fun.
I do both, there are times where i gamble with friends and there are times where I just prefer to gamble alone probably because of the type of game I'm gambling on. In sport betting, most times i like to share insight with my friends it make the whole thing more fun. Sometimes we win when luck is on our side but sometimes we loses come around. Whether we gamble with friends or on our own it all ends up in luck being the major determinate of the result. But sometimes the quietness is what we need to keep our mind focus to make the best decisions that we can.