60% winrate on zilean, can't win my promos to plat 5.

Maybe its maybeline or maybe I'm just trash. but honestly I don't think promos are fair. I get so unlucky in my promos. Literally none of my lanes won, I was sitting 1/0 for the first 10 min while my top laner was 0/5, my jg was 0/2, my adc was 0/1 and my mid was 0/2. why can't I just get team mates who are having a good day :(

I op.gg all my promo games and all 4 of them I had team mates with below 50% winrate whilst my enemies were all 50% and above.
shit just aint fair.