Looking for People to Help me Grow as a Player

Life long gamer looking for a group of positive, mature individuals to help me grow as a player. I was a top ranked Diamond Starcraft II player (who played random) but the demands of active duty military service prevented me from playing game competitive for the past 3+ years. I'm still grinding off the rust but now I'm looking to climb the ranks in League and hopefully get back to a comparable ranking to what I had in SC2.

Not looking to jump into dynamic queue right away, I'm fine with playing norms and getting a feel for peoples' playstyles. If you're a vet or active duty that's a plus but not required. Just looking for people who want to help me reach my full potential, whatever that winds up to be.