Overtired?

Hi need help and advice. My dd just turned 2 and she has been resisting bedtime for a few months and its like war putting her for bed time not to mention keeping it with the routine. I've tried sleeping balms, quiet and cooling environment and even offering warm milk. We even gave a nice warm shower to relax her but nothing works with what we have googled and took advices from our parents and elders alike. Desperately seeking other alternatives for myself and dd. It's always me scolding her and dd crying herself to sleep. It hurts to see her sobbing while sleeping as she always have nightmares every night. Help