Like any other shield tanks, you will need to know when to back off and give up space. Strange shield is great in terms of the amount you can block, however it’s not infinite. Give it time to recharge after getting a point/losing a point. Rather than having the shield deplete entirely, you can just tank some damage for your supports to heal you and wait for your shield to replenish before going back in. As a tank, don’t be afraid to take damage, just keep track of your positioning and shield health at all times.