Just some things I can't stress enough

Hello, I am a Bronze 4 support main. I have noticed mistakes that other people make and that I make too. First of all, counters don't do anything if you cant play the champion, if someone plays a champion for 500 games and their lane opponent counters them, but their lane opponent is a first time then the person who played 500 games is most likely going to win. Secondly don't rage at your team, and if you do don't bring it too chat. I admit to raging sometimes but I don't bring it to chat, I see people everywhere who rage and blame their team, if you do this you are making your team mad and putting them in a bad mood. There is no benefit to raging in chat and crying about ks. Assists are good especially if the person who killed the carry is underfed and needs the gold, if all your gold goes to one person and they get focused then the rest of the team is useless in duels and you will throw the game. Finally, I see a lot of people who play for kills, kills don't mean wins so you might want to play to take their nexus instead of trying to kill the troll getting executed at baron. Thank you for reading this, this isn't a post about being stuck in bronze or a rage post, if you feel the need to correct me than comment I would appreciate helpful corrections but if you say "you're just a bronze 4 noob stfu," than you should probably leave this post.