Find challenging games and a good team to practice wtih.

I've played league over the last 8 years on and off.
I've picked it back up about 3 years ago but since I got my new computer I've always been around low gold.
I think I can easily get to master within the next year by practicing regularly.
ADC is my main role but I'm a decent support and midlane being my 3rd best role and jungle 4th.
My pool of champ as adc is pretty average: varus (main), ezreal (old main), lucian, jhin, sivir, lucian