Learn a tank. Everyone. Learn a tank.

Don't care who it is, magneto, Hulk, Thor, Cap, does not matter. Just learn one. It is so absolutely frustrating dropping game after game bc no one knows how to play tank. I've learned both Magneto and Groot. It absolutely fucking sucks to play a solo tank, bc if you die as a solo tank, your team feels the consequences. The game is not meant to be played like Smash Brothers, where you have 1 character you always play. You need characters all across the board. By playing a 1nd tank in a team with 1, you take so much pressure off the weight of the other tank. Supports can feel a little less pressure too, as they don't need to really focus all healing into the solo tank.

TL:DR LEARN A TANK AND DONT PLAY THE 3RD GOD DAMN DPS IN YOUR TEAM.