How to rank up two sub elso at once?

I recently went back to ranked after a long time of leaving it and have realised I don't deserve to be in bronze as I went into ranked ages ago when I was well lets be honest shit.. I carry my team 90% of games and have like 10 winning streaks often, I have managed to get from Bronze 5 to Bronze 1 in a week, and I hope to just stop at silver 5 and wait for the new season soon, but I'd like to know how to jump from like bronze 2 to Silver 5 , or is that bullshit? I usually carry with {{champion:91}} or {{champion:18}}
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