You position well and push in with your teammates.
Get out of the noob mentality like you are a healer.
When you do that there isn’t enough damage going out to secure kills so your team is all running at the frontline trying to make up for you not doing anything.
Damage racks up way faster than what you can keep up with healing and your formation crumbles while everyone retreats. Then the flankers move in and pick off all the healbots while the frontline falls apart.
It’s safer to move in and attack them forcing them to retreat so players on your team taking damage have space to take a safe position and get healed back into the fight.
It takes damage to create that kind of pressure.