I just want a rioter to tell me how this happens

https://gyazo.com/c97672333e356646285c4255f79d3295 I obviously lose this game then the next game this is the matchmaking

https://gyazo.com/e5a2796b527ff66a3be3c371f3f8e9d3

is the game like really this RNG? Gotta pick the right role to have players from your skill level? or whats the deal here rofl. I get jungle I get silvers I get adc I get plats like riot????

?????????????

/all ???????????