Calling to arms all genuinely helpful people for Comp!

Hey everyone, ever since the game came out I've wanted to achieve GM at least once. In previous seasons I've only been able to achieve around plat 1/Diamond 3. This season I achieved high Diamond 1 before plummeting to currently negative Diamond 2. With the new dev update showing off the new amazing, revolutionary, exciting, wild, and bonkers systems they are adding to the game I feel like this is my last chance to achieve GM before the game gets increasingly more difficult. If anyone is in the mood to help me achieve this goal I would be extremely grateful. Before anyone in the comments says get good, I'm lame, a coward, etc. Just remember every hero needs some help from time to time. A little about the characters I play and my style before trying to help me, I'm great at holding point with Mr. Fantastic, I'm a decent Blade depending on the game, also fairly well at storm but I've been lagging with her this season in all honesty, I been killing it as white fox, a little more than decent with Luna, and good with Invisible woman and Ultron. The one role I haven't been confident in is tank. I'm a decent Emma Frost and I was killing it with Dino before the nerf. Please help!