Platinum 3 player looking for team (Mid/ADC/Jungle)

Hello, I am a Platinum 3 player my champion pools consist of ;

Mid lane:

learning:

ADC:

learning :

Jungle:

learning:

I am 18 years old, and a fresh high school graduate looking for a serious team to push past diamond 5 and to get as high as masters in 5s

I am a capable shotcaller