Baby won’t breastfeed

Help! FTM any my baby won’t breastfeed. I wanted so badly to exclusively breastfeed but she just won’t do it. She’ll suck like crazy like anything I put in her mouth otherwise, finger, paci for first time today, and bottle (had to introduce because we’re almost 2 weeks old and haven’t been gaining weight at all). What do I do?! Will I ever be able to breastfeed her? She just screams and is inconsolable at my breast. Do I just stop being stubborn and give her milk in a bottle like she wants? We have been to so many lactation appointments already and nothing is helping, nipple shield vs no shield, different holds, etc