Need some tips to stop being called feeder ;)

So, i'm level 10 and I play really badly. I can only play as sup, and only with a friend, or adc with a friend, and if i don't have a friend to play, I feel like im always called a feeder etc... and that's keeping me from playing the game... I need some tips to how I can convince myself to play the game and not fear people reporting me for being a noob or calling me a feeder and report for feeder... Thank you for reading this. Any help is appreciated.
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