So this sounds like a Frontline thing. I'd assume so, if there is open communication, enough floor space to get lost, and RW queues being dead 99% of the time.

There's a lot of general advice. Toffa covered a lot of the basics: Check your map often. Pan you camera to take in your surroundings often. Don't over-extend. Have an idea of what the different jobs can do in general strokes. Tanks for example can yoink you in at 15 y range, but WAR is a lot scarier because they can yoink you in another 10 y after that. Knowing how you can get punished helps you make informed decisions, since you can't just stay out of range of all enemies forever. It's a matter of taking an inventory of what can go wrong with the decisions you make.

But that's very general. I guess something I want to touch on is kind of philosophical, kind of practical.
Folks say "stay together" ... and then scatter randomly anyway...
This is kind of just something I learned from a lot of team games in general, or life stuff, and it's super dangerous advice, but sometimes it's better to support your team in making a suboptimal decision and stay together, than it is to make the most optimal decision but not have sufficient participation to do so. Sometimes your team retreats too soon, or is not aggressive enough, or maybe they fight for an inferior objective. Of course, on the inverse, mob mentality is the other side of the coin, and a whole alliance can get wiped because everyone jumped in on a really bad decision with really no positive outcome. It's hard.

Don't do the thing people do where they go to the mathematically superior objective alone or in insufficient numbers, get picked off piecemeal, and die. It's kind of a hard balance, because part of leadership is initiative, and that means heading to the right part of the map ahead of your team, though if you are dying because you can't read retreat in time, or not getting enough contribution because you are too timid, you have to get better at reading the reality of what players are doing, not what you wish they would do, and making the most out of it. Especially because a lot of this is general advice. It's good general advice to stay together. But like, all the FL maps have a lot of side or lower scoring objectives that are worth controlling, yet only merit a small force or single careful player to handle.

If you could tell me which job or role you want to get better at, I could provide advice for it, though to start it already sounds like you need to improve your awareness.