Help Needed for future pulls and builds

so I lost the 50/50 last banner wasn't planning to get mornye and was saving for ameath but my younger brother played with the controller and did a 10 pull and I got mornye I was wandering what to do next I m screwed for the 50/50 for ameath and does mornye need her weapon . I already have chisa and lynae. so what do u think I should do with future pulls and stuff