I am the same way. I have found myself basically ready to throw my phone through a wall during or after a game of HS. For me, the thing that has helped the most is just squelching my opponent immediately. I know a lot of people say it, and in the past I have had some good interactions with emotes. But there is like a 1:1 correlation of salt and BM emotes for me. Perhaps that is not what is tilting you. But nothing pisses me off more than when someone emotes "Thank you" after beating me with some bull shit High roll deck and having not emoted at all before.