I can't pass gold 4

Hello guys, So basically that's the second time I reach gold, first time was like 3 days ago, and I got demoted again to gold 5, then I won 3 games on a row then I came back to gold 4, the main issue here, once I reach gold 4, my win rate become something like winning 1 game out of 10, Here are my last 3 matches: https://matchhistory.eune.leagueoflegends.com/en/#match-details/EUN1/1886241301/217602025?tab=overview Playing as a jungler Lee sin, while having 14 deaths Yasuo, and 19 deaths bot lane. https://matchhistory.eune.leagueoflegends.com/en/#match-details/EUN1/1886196391/217602025?tab=overview Playing as a mid laner Talon, having 17 deaths Master YI top lane. https://matchhistory.eune.leagueoflegends.com/en/#match-details/EUN1/1886164150/217602025?tab=overview Playing as a support Soraka, while my adc Vayne hasn't played the game for 6 months -As she said-. So here's my question, is the lower rank I get the higher chances I get players with a poor performance in-game? Or it's only a thing running in gold right now? Or because it's just Preseason and people is not playing seriously at all? Or am I the reason? However, I won't be complaining a lot here, if you have any tips or suggestions to improve the gameplay for me, please share it with me, I'm kind of getting sick of this gold 4, having a winning streak then having a losing streak is not quite fun.
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