Need help with Jax vs Fiora

So I'm a top lane main. Last season I was Gold 2, but I'm only at Gold 4 as far as this season goes. I main Renekton with a pocket-pick Jax whenever someone else picks my champ. However, when I first picked Jax, I got put against a Fiora for the first time. Any advice on how I don't get facerolled every trade?
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