How good am i ?

hey guys i am S3 support main and i have 59.4% win rate that normal for someone in my rank or am i better/lower more specifically am i good enough to reach G5 i know that am good support but lately i became in self doubt and bit less confedent so am not really sure about how good am i here is some graph about me in some websites so please feel free to tell me what do you think about me :)
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