Try to work as a team. Dont play hero all the time, but lend hand for others, so they can clean up the mess.
Always try to think "What if?":
If you now push forward, should you first ink an escape route?
Not sure where that one guy vanished? Maybe better try luring him out with a sub weapon.
Learning from mistakes. Dont lose hope, after a few success from opponent, they sometimes get too ****y and comebacks happen.