3 year sleep

Is anyone in the trenches at the moment with there 3 year olds sleep? My little has become a lot more scared of stuff, waking multiple times in the night for me like separation anxiety has ramped up and waking early morning and refusing to go back to sleep. I’m a little lost on how to make this better! She’s my first so any advice is welcome She doesn’t nap and goes to bed between 7-7:30