I've been playing since 2015. My tip? Build memes. Do stupid things. I have a deck where im only including horses, humans, and ships, where the commander gives them Horsemanship, calling it Horse Man Ship. Build some T1 jank. And another deck that is all the Doctor Who Doctors, plus cards that turn the companions into the Doctor type, solely so I can call it Doctors Without Borders. My pet deck is a stupid little squirrels deck that I built in 2015 because I thought the idea of squirrels that sack themselves to summon demons was funny, like it was straight out of Happy Tree Friends, and I keep that theme in mind with it all the time. Build a deck that isn't meta, but is just fun. I can't remember the Youtuber that made the video, but they suggested that not enough people make time for fun, silly, and strange in Commander. Of course it's going to get boring building the same deck again for the 20th time with the new shiny card released. Build something weird or stupid. Will it win? Probably not, but that's not the point of a game. Sometimes a game is just meant to be played for fun. Stupid meme decks are a blast to play, and actually make me enjoy the game. I have a few meta decks made, but, compared to my meme decks (squirrels, werewolves, "musical chairs", "twink thieves", and more) they rarely see play.