My climb from bronze to gold hasn't changed me as a player

i still have a negative win rate on main 2 champs (renagr and lee sin) i dont upgrade trinket i cant last hit i cant play ,top, mid, adc, or support properly i dont buy wards i face check bushes i cant smite dragon or baron i die a lot

I haven't actually got better or practiced my skills going from bronze to gold, i just havent gotten worse so i climb because every1 else is even worse than me. ranked system needs a rework