It's not the best place to open a conversation about skill levels and ranked, but anyway, it matters also what role you will play, if you are a good mid laner but you suck at jungle ask kindly your team to swap roles and explain them why. For example, i suck hard at top and jungle but i think i am decent support for my elo ( dask and snoopi carried me at gold at s2 but after the reset i climbed even higher) . So you have to "master" and play 1-2 roles ( your favourites )