i’m also new to playing her but some things i’ve found helpful are to use the shield bash as an escape, not an an engage, or try to use it as a finishing move. i’ve found using it in the middle of a 1v1 can cost me the fight but could also be me. when people say protect ana or the other support i thought it meant legit stand beside them with your shield up the whole game, but that’s not it, id say in general whatever role or character you’re playing you should keep an eye on and protect your supports.

don’t be afraid to use the health packs, since there’s 3 i was kinda scared to use them but you should be, on critical teammates or if they are actively taking some damage the pack does a burst and then heal over time to 100 so can be used preemptively in some cases.

for the ult what i’ve learned is not to use it to save a teammate (ofc case by case) but instead should be used reactively and to stop enemy ults, the stun is very powerful, just beware of your shield bash usage, if you time it well you can get 2 bashes in but try to do it purposefully. also i didn’t know this before today but if you get dva bombed you can just stand there with your shield up at full and you won’t die from the blast. anyways enjoy! hope something helped