Here’s what I have to say…
This is kind of natural when it comes to competing games. Although some people don’t show it, they still get angry or sad when they lose, as long as they are serious when they play. What you could do to improve this kind of behaviour would be to:
Take your anger not on the players, but on something else. (Most of the time I either take it on myself or on the game itself )
Punch something to get your anger out. (Not electronics though. It would be good to keep a pillow around yourself when you play)
Instead of cursing in the game, just let it out loud if you’re alone.
I’m not sure how it’s for you, but when I play seriously, I have less chances of winning a game. That might be because, when I’m serious, I tend to focus the players who have stolen points from me. I do it with the intention to steal my points back by all means and therefore, I lose my cool.
When I play more relaxing, what I do is to not focus only a single person for the whole round (although it might happen if a person is close to victory) , but I go around the whole map stealing from the most convenient players. This way, my playing feels more natural and even if I lose, I would gladly accept my lost because the winner must have done well.
Personally, I have nothing against you nor I dislike you for any reason. I wouldn’t get annoyed by you because you like Dragon Ball, because that’s not even a bad thing. Many people are obbesed with something or like it on a level that they want to show it to everyone else. Even I watch animes and I try to show some great titles to my friends and I even receive some good reactions when I do so. There might be people who don’t like Dragon Ball or animes in general. So, don’t mind them and be yourself.
That’s a way of playing a game, why would anyone be annoyed by this? You either learn to play with multiple combos or master one and become a pro at it. Some people might be annoyed if your combo is overpowered, but not by the fact that you’re using it all the time.
Having arguments is not a bad thing. It’s actually considered as a good thing since you can hear what the other side thinks or even understand and agree with their point. Even most relationships are based on arguments since this way you get to know more about the other side. Just keep in mind that you have to keep moderated! Listen through all what the other side has to say, don’t interrupt them while they are talking and then say your points.
Well, these are my thoughs, I hope they will be of any help to you.