League of Legends (LoL) Question: I need to get better.

Well you can get better by sever different ways:
- Watch replays of your games and try to find and eliminate your weaknesses
- Watch videos of skilled youtubers that play your champion, watch their gameplay closely and try to learn from them
- Practise lasthitting in Practise tool. Simply lock your level to 1 and try to last hit as many minions as you possibly can.
- Read some guides from experienced players here on mobafire
- Play more effective. Sometimes it is better to make a small pause between your games to restart your brain
- Try different rune setups and item builds, find what suits your playstyle best!
- Try to play with some friends If possible - it will get a lot easier
- Try to avoid the general toxicity if possible. You will win a lot more games If you won't put others down.
- Learn all those combos and animation canceling your champion has.
- Pay more attention to objectives rather then kills
- Learn how to adapt your build into different matchups and team compositions. (For example Lux usually builds Luden's Tempest first but sometimes Zhonya's horglass is a lot better into assassin champions /// When you play Kai'Sa you basically want to stick to an AP build If your team is mostly AD; AD build If your team is mostly AP, etc.)
- Pay more attention to minimap and do your best to alert your teammates with pings.
- Buy Control Wards to have constant vision on the minimap
- Have fun!!! Keep in mind that LOL is only a game - IF YOU ARE NOT HAVING FUN, DON'T PLAY IT OR DO YOUR BEST TO ENJOY EVERY GAME
- Be nice to others and they will be nice to you (can actually give you and additional gank or two, sometimes...)

From what I’ve heard, Aatrox is really hard to play, Same with Aphelios. Bot lane is just a really hard role in general, and I cannot play it to save my life. Aphelios is one of the most complicated ADC’s in the entire game, and thanks to his recent nerfs, it’s pretty easy for a good player to play against him. I hope this helps, and I wish you the best of luck.