After failing my G2 promos 3 times I'm done.

I seriously have no will to play ranked anymore its so unfun. Call me paranoid but I swear Riot is out to get me, all goes well then first game in promos I get an adc with 500 constant ping who is being toxic as hell to all my team mates. He does nothing. Second game I do well but I have someone trolling cause "Their adc is useless" League of legends has the most un- fun ranked system of any game I have ever played. I love how you spend approx 1 and a half hours to 2 and a half hours playing games just to win one and lose two and then get placed at 60 lp in Gold 3.