All good advice already given.
I would firstly suggest to learn how to play the game for yourself, just like any game.
What works for you is not the same as what works for somebody else.
Take advice and see if those suggestions bear fruit FOR YOU.
You say you like to play aggressively?
I would say great, would love to have you on my team.
But, aggressive game-play in Battlefield requires a good understanding of what is going on in the game at any given time, and also a good knowledge(Obviously)of the maps.
I would suggest playing Falck first, as you can heal yourself while you learn the environment and make mistakes.
But play Falck as she is intended, revive your teammates and don't just revive anyone that you see(Although you certainly can at some point).
If they are dead, the chances are that you will be next, and somebody somewhere is waiting for you..
You can use this to your advantage though.
Dead bodies on the battlefield are like breadcrumbs to your enemies.
Keep an eye on the players that you revive who are playing the objective, or doing something worthwhile.
If they are playing well, try to stick with them and help them, they(Mostly) WILL help you back if they can, or their squad-mates that spawn on them will.
My main suggestion would be not trying to play too fast initially, even though you probably want to! :-)
Get an understanding of what's going on around you and what tools are available in the game, the second point being most prevalent in 2042.
Also, things that look like minimal cover are actually great cover.
Think before you go somewhere, don't just go there because your fingers tell you to! :-)
Good luck!