gold adc lf dedicated team already set and practicing

I am a dedicated adc who wants to improve and play ranked 5s with a team that already has a set roster. I am 19 i just graduated high school last may, i am not in college and i dont have a job atm. Right now im gold 5 but i have seen plat promos. I have bee playing since s3 and i can play basically every adc. add me.