Why am I still Bronze 5

I’ve spent over 13 hours healing in competitive doing very well having a 60% WR, I’ve gone through placements 6 times and I am still being placed Bronze 5 while all my friends are actually being adjusted with worse overall stats than mine. The ranked system is broken, the game is horrible. Blizzard has ruined their last game for me. Fix the dog water matchmaking and MMR system and pay attention to your consumer feedback. You have become such an awful company…