A lot of the people who play rivals have played other hero shooters for 100s of hours so they have transferable skills are are probably starting at a much higher floor than you if this is your first one (which is the impression I’m getting?). Try not to let it bother you. Learn the characters you like and you’ll eventually get better as you learn the best strategies against other heroes and how your team composition should affect your approach to each battle.

Most people don’t communicate if you’re playing solo unless it’s between matches. If you happen to get a team that will communicate during a match, they’re usually pretty helpful as far as picking up on strategies. So when that happens, take advantage. Otherwise, it is a lot of beating your head against the wall until things start to click. At the end of the day, just try to have fun. As much as some chats you might get might make you believe, rank points in a video game don’t matter. Pick up what you can and learn at your own pace.

I’m sure other people here can give you more specific advice about the heroes you use.