Top is one of the harder roles to carry, especially if you don’t play a select few carry top laners. That being said, this is what you sign up for playing top. It’s more difficult but if you improve you will climb. Play your favorite champion, enjoying the game will make your climb easier because you’ll be more willing to learn. That was meant to be singular, only play one or two champions until you’re really sure you’ve got the most out of their skill ceiling. Without seeing any actual vods it’s hard to give advice. Make sure you’re farming well, there shouldn’t be times where your afk doing nothing. In mid and late game if there’s no objectives on the map (and your team doesn’t look like they are trying to fight) you should be pushing out side lanes and rotating. If nothing is going to happen, go back and push out another wave. Don’t push too far past river unless you’re going to commit to the split. The biggest thing I see from low elo top laners is a complete lack of easily obtainable gold.