League of Legends is like a chess game and like the maze runner. It involves strategy and decisiveness.
Work on maximising your vision and the efficiency of your vision. If you can duo queue, work together on creating as much EFFECTIVE vision as you can. By effective vision I mean, the best possible vision setting you can provide at a given point in time. For example. Say we're at the 10 minute mark and you want to take dragon. Instead of focusing your vision control on the top side jungle focus your vision control on the opposing bot side jungle and immediate dragon area. Get deep wards in the enemy jungle in COMMON pathways for enemies to come through (maximising the chances of spotting an incoming threat) and try to control the scuttles on both sides as much as you can. Especially the dragon scuttle. Remember, you can have 1 active pink up at a time. If you ever have 100 spare gold, buy a pink. Even if you have one active. Chances are it will die, in which case you can immediately replace it or put a new pink down in a more efficient spot based on the play you are making or planning to make.
Like in a maze, you need to be decisive. League of Legends...Summoners Rift can be thought of as the maze from Maze Runner. There's one map with changing routes to success. The route changes depending on what is happening in the game. But most the time, the situations in games are repeatable and you will have the same scenario in several games. For example, you have position on the second mid turret and attempt to siege, but realise you would make better use of your time rotating to dragon due to the position you have on mid lane.
You should make plays based on your position. That said you should also be decisive with your position based on your plays. Having appropriate and effective vision control will allow you to make more decisive decisions on where to position yourself in both team fights and in general.
One skill I have found most valuable is micro managing my effectiveness and the effectiveness of my team. I'm sure you've been in a situation where your team has simply sieged a tower for 10 minutes whilst the enemy defends it. This is a huge waste of time. Always look at your map, look at your position and the enemies position. Don't waste 10 minutes in one lane when you have the position to rotate to another objective, e.g. another lane or dragon. General rule of thumb. There is always an objective available. Just open your eyes.
Another thing I would recommend. Don't wait for an opportunity to present itself. If you're sieging a tower for 10 minutes chances are both teams are simply waiting for one team to fk up and create an opening for the other team to attack and win the fight. Again, don't waste your time. If you're waiting for an opportunity to present itself look around and look for opportunities already available and even better, create opportunities. Look at the clock, look at camp timers, look at turret health and wave sizes. Take into account all of these and make the decisive decision and make the right play.
League is like chess. There are millions of ways to win. There are millions of ways to lose...from mistakes and indecisive decisions. Think of all the possibilities and set your own route.
Note: This is just an opinion and in no way will guarantee any actual success in the fields of justice. I wish you the best of luck though.
Regards,
Aatrox