[SmG Phoenix]

Your points are all over the place. Focus down on 1 point at a time. Trying to improve everything will make progress slower. That's what my senpai told me.
But Imma address these points 1 by 1.

1. Practice makes perfect. Try to look up guides to focus down improving aim.
2. This is something that even I'm working on. The easiest way to say it is: read your opponents. Happy to explain.in VC on Discord
3. Not a Pharah main, but you need to try and understand her kit better. Ask Stinger for more details.
4. This was another problem for me which was restriction of gameplay. Just try whatever and you'll eventually find the style you need to climb. Can go into detail if needed.
5. DPS shouldn't be on point all the time unless maybe Tracer/Genji. I can promise you though, that there will be holes in your positioning. Like I think my positioning is garbage so I dunno how you think yours is decent. Bold call.
6.Too general of a question. But from what I can tell this is similar to restriction of gameplay problem.
7. Rule 1 of Rein: Never charge.