Why the ranking system has turned so bad??

Why i get 2 unrankeds and 1 silver with all being at 40% winrate while others having a 68% winrate and a 54% in general that happenes on flex and they are gold too... my flex winrate was 52% some months ago now that im back 2 defeats in a row at 0 LP bronze 1 not demoted SO IF IM FOR A HIGHER DIVISION WHY I LOSE? CONSTANTLY

My jungler never ever came on my lane for once the only time he came was to take my farm or came once when the wave was on my tower ffs

Like why why why the system is so freaking changed like i hit my skillshots and i do NO FCKING DMG FCK YOUR KEYSTONES ON YOUR ASS RIOT GAMES Freaking horrible runes i did 20 dmg with my R when i was ahead 20! with Ahri you call that broken ??! then i had no mana ofc also ignite was useless better nerf it more i call all that bs.

Oh let them get 1 movement drake+baron with the retarted buffs on minions like THEY ARENT ENOUGH TO LOSE YOU A GAME.. and you lost the game i tried getting movement and ap and scaling not enough i tried farming up i tried pushing all lanes and get towers NOT ENOUGH i tried DODGING BETTER NOT ENOUGH i tried deffing not enough i tried warding better NOT ENOUGH i tried killing them from stealthy STILL NOT ENOUGH IM JUST FORCED TO LOSE (old player maxing at gold 3 with 54% winrate) at around 2:40 kda average at 1000 games with 7.0 cs average from all champs.

ye i deserve bronze 1 on flex and silver 3-2 nice system Riot NICE SYSTEM.

Comment below what i might need to do thank you ughh.

P.S i received +35 LP ? wait wut ? :D nicee :3