I'm cursed.

I don't know what has happened to my luck but I cannot win a game unless I lose lane hard. Every game I make plays and get people fed, mid/late game comes around and.....lose. This has been going on for 20+ games now. The only wins I have are those where I lost lane then later made plays to win late game....I'm very confused at this point. No idea what is happening but even a 6/0 jhin and a 3/1 fiora with 30cs lead at pre-15 minutes couldn't break this curse, nor could a 3/0 Xayah and 8/0 lux. I'm currently afraid to play ranked because I win lane 9/10 times (the other I just lose, I very very rarely feed more then 1 or 2 deaths in lane) so that means 9/10 times I will lose game at this point. Well, I guess this is giving me time to practice jungle role but still...its getting crazy.