u/lotus_of_haftkarsvar

I do not have sandrone and I don't want to pull for her as I am like sixty pity and have barely any pulls and am also guaranteed. So.. could I run her as a DPS? My account already kind of sucks, I don't have xilonen, yae, Nicole (though that's for sandrone), or any qiqi cons, only wrio. I can use the four stars or maybe sucrose, and can use Alyosha when he releases.. would that be enough to make her a pretty good DPS? Is she even a DPS in the first place??? Does she need her sig to be a DPS????? Any help is greatly accepted!!!

My Lauma currently has 225 ER, but I am still getting her burst every other rotation? My team is Columbina, Ineffa, Lauma and Aino. Along with that, she's on Etherlight Spindlelute right now, and she is on the Deepwood artifact set.
Rotation is as follows:
Columbina E Q>Ineffa E Q>Lauma hE Q>Aino E Q>Columbina CD

What am I doing wrong? Is it something to do with my rotation? My weapon? My ER?