What is wrong with Toplane?!

I've gotten Fiora a long time ago and began playing her. But I just get my head turned inside out due to what's in the toplane. Seriously.. I need some advice on how to play in toplane. Every champion I fight against is just too op and annoying and I always get beaten. I thought the game was supposed to be balanced. So once again, I need some advice. Advice on Fiora is also welcome. Also do you have suggestions for any easier toplaner that I should play?
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